Hum after rear-end gear change
I'm coming to all of you as the experts.
I've recently had my gears changed in my 1988 5.0L convertible to 3:73:1. (I only have 152,000KM on the car) There's a humming noise which comes from the rear-end which gets significanltly louder between 60-90 KM / Hr. I was told by the mechanic that this is a common thing with the gears and should be ignored. Just wanting to get some thoughts/opinions. The mechanic I'm dealing with is great and has always done excellent work on the car. He goes over and above what I've asked him to do with little cost. I'm just thinking that it should be normal as it can become quite annoying. Thanks in advance, Marc |
Hum after rear-end gear change
On Jul 30, 8:29*am, "88 Mustang GT Conv." >
wrote: > I'm coming to all of you as the experts. > > I've recently had my gears changed in my 1988 5.0L convertible to > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > which comes from the rear-end which gets significanltly louder between > 60-90 KM / Hr. > > I was told by the mechanic that this is a common thing with the gears > and should be ignored. > > Just wanting to get some thoughts/opinions. > > The mechanic I'm dealing with is great and has always done excellent > work on the car. He goes over and above what I've asked him to do with > little cost. > > I'm just thinking that it should be normal as it can become quite > annoying. > > Thanks in advance, > Marc Just thinking that it SHOULDN'T be normal....sorry |
Hum after rear-end gear change
On Jul 30, 12:29 pm, "88 Mustang GT Conv." >
wrote: > I'm coming to all of you as the experts. > > I've recently had my gears changed in my 1988 5.0L convertible to > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > which comes from the rear-end which gets significanltly louder between > 60-90 KM / Hr. > > I was told by the mechanic that this is a common thing with the gears > and should be ignored. > > Just wanting to get some thoughts/opinions. > > The mechanic I'm dealing with is great and has always done excellent > work on the car. He goes over and above what I've asked him to do with > little cost. > > I'm just thinking that it should be normal as it can become quite > annoying. > > Thanks in advance, > Marc Doesn't sound normal to me... Some gears do whine more than others, but by your brief description I get the feeling you are getting more than normal.... Might want to get a second opinion from a reputable gear shop if you have one in town... |
Hum after rear-end gear change
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Hum after rear-end gear change
88 Mustang GT Conv. wrote:
> I'm coming to all of you as the experts. > > I've recently had my gears changed in my 1988 5.0L convertible to > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > which comes from the rear-end which gets significanltly louder between > 60-90 KM / Hr. > > I was told by the mechanic that this is a common thing with the gears > and should be ignored. > > Just wanting to get some thoughts/opinions. > > The mechanic I'm dealing with is great and has always done excellent > work on the car. He goes over and above what I've asked him to do with > little cost. > > I'm just thinking that it should be normal as it can become quite > annoying. > > Thanks in advance, > Marc He's correct in that it is a fairly normal occurrence after new gears are installed and not properly adjusted. That's why gear replacement is something I had done, proper adjustment is critical and not very easy. -- TEACHER: Harold, what do you call a person who keeps on talking when people are no longer interested? HAROLD: A teacher |
Hum after rear-end gear change
Take the car back and tell him to fix it. Gears don't whine when
properly installed. Also, after he fixes this problem find yourself a new mechanic. 88 Mustang GT Conv. wrote: > I'm coming to all of you as the experts. > > I've recently had my gears changed in my 1988 5.0L convertible to > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > which comes from the rear-end which gets significanltly louder between > 60-90 KM / Hr. > > I was told by the mechanic that this is a common thing with the gears > and should be ignored. > > Just wanting to get some thoughts/opinions. > > The mechanic I'm dealing with is great and has always done excellent > work on the car. He goes over and above what I've asked him to do with > little cost. > > I'm just thinking that it should be normal as it can become quite > annoying. > > Thanks in advance, > Marc |
Hum after rear-end gear change
On Jul 30, 10:51*am, Michael Johnson > wrote:
> Take the car back and tell him to fix it. *Gears don't whine when > properly installed. *Also, after he fixes this problem find yourself a > new mechanic. > > 88 Mustang GT Conv. wrote: > > > > > I'm coming to all of you as the experts. > > > I've recently had my gears changed in my 1988 5.0L convertible to > > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > > which comes from the rear-end which gets significanltly louder between > > 60-90 KM / Hr. > > > I was told by the mechanic that this is a common thing with the gears > > and should be ignored. > > > Just wanting to get some thoughts/opinions. > > > The mechanic I'm dealing with is great and has always done excellent > > work on the car. He goes over and above what I've asked him to do with > > little cost. > > > I'm just thinking that it should be normal as it can become quite > > annoying. > > > Thanks in advance, > > Marc- Hide quoted text - > > - Show quoted text - I had 3.55 gears and trac loc put in my 69 coupe over 3 years ago. The entire rear end was custom built by a shop that builds ford 9" rears all the time for drag racing. So I know they know what they are doing. They test drove it. I drove it home 300 miles. I drive it maybe couple times a month in the summer time. Its made the whining sound ever since they were put in over 3 years ago. They work great. Its more noticable on the highway ofcourse. Im thinking that its fairly normal for aftermarket gears. Ive never had a problem. |
Hum after rear-end gear change
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Hum after rear-end gear change
Michael Johnson wrote:
> Take the car back and tell him to fix it. Gears don't whine when > properly installed. Also, after he fixes this problem find yourself a > new mechanic. > The common thought, but I would be reluctant. I am very very picky about by whom and how my Mustang is worked on (all my cars really) and I'm not sure I'd want a half-ass like that going into it a second time. What *I* would do is ask people that know, car clubs or at a race track and get it readjusted then dispute the charge on my credit card. Go back to the guy with proof that proper alignment fixed the problem and and make him cut the bill in half at least. If he fails to comply I'd tell him I was disputing the charge and taking him to small claims. He will probably change his mind as long as you have proof that realigning the gears fixed it and that is actually true. One has to assume you could get a defective set of gears that is noisy and maybe it will go away, maybe it won't. No car that I've had a gear replacement done to made noise afterward. -- TEACHER: Harold, what do you call a person who keeps on talking when people are no longer interested? HAROLD: A teacher |
Hum after rear-end gear change
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Hum after rear-end gear change
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Hum after rear-end gear change
"88 Mustang GT Conv." > wrote in message ... > I'm coming to all of you as the experts. > > I've recently had my gears changed in my 1988 5.0L convertible to > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > which comes from the rear-end which gets significanltly louder between > 60-90 KM / Hr. > > I was told by the mechanic that this is a common thing with the gears > and should be ignored. > > Just wanting to get some thoughts/opinions. > > The mechanic I'm dealing with is great and has always done excellent > work on the car. He goes over and above what I've asked him to do with > little cost. > > I'm just thinking that it should be normal as it can become quite > annoying. > > Thanks in advance, > Marc I had a rebuilt engine put in, went to solid mounts, new clutch, and they changed out the oil in the rear end. And ended up with a lot more drive train noise around 65 to 80 MPH, very noticeable, in any gear with clutch engaged. After driving it for a few months, it is gone. I think the angle of engine to drive shaft was off. (only like 4 degrees or so total) If it was just gears, it should not have a resonance 60 to 90 km/hr, should be noisy proportional to speed, seems like the tires/driveshaft would have to be involved too. Let us know what you fine out. |
Hum after rear-end gear change
88 Mustang GT Conv. wrote:
> I've recently had my gears changed in my 1988 5.0L convertible > to 3:73:1. (I only have 152,000KM on the car) There's a humming > noise which comes from the rear-end which gets significanltly > louder between 60-90 KM / Hr. > > I was told by the mechanic that this is a common thing with the > gears and should be ignored. Let me guess. If you're cruising at speed with a light throttle, and then lift your foot off the gas, the noise goes away (or gets significantly quieter). Sounds like it wasn't set up properly. Cheers! zëkë -- '65 Fastback 289/4-speed/3.50s '91 LX Hatchback 5.0/5-speed/3.08s (MIA since Feb'00) '97 GT 4.6/5-speed/3.23s (the winter beater) |
Hum after rear-end gear change
Zeke-baby > wrote in
: > Sounds like it wasn't set up properly. Pretty much what everyone in this thread has said. The best way to go about it is to get a complete used differential/axle with the ratio you want. Ford rear ends take a very long time to wear out. The only one I ever had that made any appreciable noise was an 8" that had over 600,000 miles on it. The 8.8 in my '71 Galaxie has over 240,000 on it, and is quiet as a mouse. On the other hand, mechanics who don't understand how to set a rear end up properly (and they are few and far between now) can cause a lot of trouble in a heartbeat. I read over the procedure in my 1969 Chilton's book, and it isn't anything I would want to tackle. |
Hum after rear-end gear change
On Jul 31, 12:19*am, Zeke-baby >
wrote: > 88 Mustang GT Conv. wrote: > > > I've recently had my gears changed in my 1988 5.0L convertible > > to 3:73:1. (I only have 152,000KM on the car) There's a humming > > noise which comes from the rear-end which gets significanltly > > louder between 60-90 KM / Hr. > > > I was told by the mechanic that this is a common thing with the > > gears and should be ignored. > > Let me guess. *If you're cruising at speed with a light throttle, > and then lift your foot off the gas, the noise goes away (or gets > significantly quieter). > > Sounds like it wasn't set up properly. > > Cheers! > > * * * * * * * * * * * * * * * * * * * * * * * * * * * * *zëkë > > -- > '65 Fastback 289/4-speed/3.50s > '91 LX Hatchback 5.0/5-speed/3.08s (MIA since Feb'00) > '97 GT 4.6/5-speed/3.23s (the winter beater) This is exactly what happens. The noise is less significant (although not gone) when the throttle is released. To answer some other questions. The gears were provided by the mechanic and I don't know the brand. I'm not a car buff (I like a nice car but know little about them) and therefore rely heavily on other people's knowledge experience. The car is an automatic and I have 2" flowmaster exhaust (which make enough noise on their own) and the humm overpowers them easily at that speed range (with the top up or down). Thanks to everyone, I will contact the mechanic and discuss with him. Marc |
Hum after rear-end gear change
On Wed, 30 Jul 2008 05:29:27 -0700 (PDT), "88 Mustang GT Conv."
> wrote: >I'm coming to all of you as the experts. > >I've recently had my gears changed in my 1988 5.0L convertible to >3:73:1. (I only have 152,000KM on the car) There's a humming noise >which comes from the rear-end which gets significanltly louder between >60-90 KM / Hr. > >I was told by the mechanic that this is a common thing with the gears >and should be ignored. > >Just wanting to get some thoughts/opinions. > >The mechanic I'm dealing with is great and has always done excellent >work on the car. He goes over and above what I've asked him to do with >little cost. > >I'm just thinking that it should be normal as it can become quite >annoying. > >Thanks in advance, >Marc Similar problem. Had the differential checked as a speed shop. Not a thing wrong with the unit. When they put it back together, no sound. The only change was the posi lube that gets mixed in. The speed shop said to only use the Ford posi lube. Have not had a bit of problem since. Nice and quiet. As I recall, and I can tell you what it calls for, but they used 2 tubes of the Ford posi lube. |
Hum after rear-end gear change
On Jul 31, 6:54 pm, Spike > wrote:
> On Wed, 30 Jul 2008 05:29:27 -0700 (PDT), "88 Mustang GT Conv." > > > > > wrote: > >I'm coming to all of you as the experts. > > >I've recently had my gears changed in my 1988 5.0L convertible to > >3:73:1. (I only have 152,000KM on the car) There's a humming noise > >which comes from the rear-end which gets significanltly louder between > >60-90 KM / Hr. > > >I was told by the mechanic that this is a common thing with the gears > >and should be ignored. > > >Just wanting to get some thoughts/opinions. > > >The mechanic I'm dealing with is great and has always done excellent > >work on the car. He goes over and above what I've asked him to do with > >little cost. > > >I'm just thinking that it should be normal as it can become quite > >annoying. > > >Thanks in advance, > >Marc > > Similar problem. Had the differential checked as a speed shop. Not a > thing wrong with the unit. When they put it back together, no sound. > The only change was the posi lube that gets mixed in. The speed shop > said to only use the Ford posi lube. Have not had a bit of problem > since. Nice and quiet. As I recall, and I can tell you what it calls > for, but they used 2 tubes of the Ford posi lube. guessing you are talking about the "friction modifier"... helps the clutches slip when you go around corners... without it they'll chatter a bit.. |
Hum after rear-end gear change
88 Mustang GT Conv. wrote:
> On Jul 31, 12:19 am, Zeke-baby > > wrote: >> 88 Mustang GT Conv. wrote: >> >>> I've recently had my gears changed in my 1988 5.0L convertible >>> to 3:73:1. (I only have 152,000KM on the car) There's a humming >>> noise which comes from the rear-end which gets significanltly >>> louder between 60-90 KM / Hr. >>> I was told by the mechanic that this is a common thing with the >>> gears and should be ignored. >> Let me guess. If you're cruising at speed with a light throttle, >> and then lift your foot off the gas, the noise goes away (or gets >> significantly quieter). >> >> Sounds like it wasn't set up properly. >> >> Cheers! >> >> zëkë >> >> -- >> '65 Fastback 289/4-speed/3.50s >> '91 LX Hatchback 5.0/5-speed/3.08s (MIA since Feb'00) >> '97 GT 4.6/5-speed/3.23s (the winter beater) > > This is exactly what happens. The noise is less significant (although > not gone) when the throttle is released. > > To answer some other questions. The gears were provided by the > mechanic and I don't know the brand. I'm not a car buff (I like a nice > car but know little about them) and therefore rely heavily on other > people's knowledge experience. > > The car is an automatic and I have 2" flowmaster exhaust (which make > enough noise on their own) and the humm overpowers them easily at that > speed range (with the top up or down). > > Thanks to everyone, I will contact the mechanic and discuss with him. > > Marc I think I'd get another mech to check it, someone recommended by people from a track. Also 2" exhaust? THe stock Mustang pipes are 2 1/4" the upgrade is usually 2 1/2 or 3" -- TEACHER: Harold, what do you call a person who keeps on talking when people are no longer interested? HAROLD: A teacher |
Hum after rear-end gear change
John S. wrote:
> On Jul 31, 6:54 pm, Spike > wrote: >> On Wed, 30 Jul 2008 05:29:27 -0700 (PDT), "88 Mustang GT Conv." >> >> >> >> > wrote: >>> I'm coming to all of you as the experts. >>> I've recently had my gears changed in my 1988 5.0L convertible to >>> 3:73:1. (I only have 152,000KM on the car) There's a humming noise >>> which comes from the rear-end which gets significanltly louder between >>> 60-90 KM / Hr. >>> I was told by the mechanic that this is a common thing with the gears >>> and should be ignored. >>> Just wanting to get some thoughts/opinions. >>> The mechanic I'm dealing with is great and has always done excellent >>> work on the car. He goes over and above what I've asked him to do with >>> little cost. >>> I'm just thinking that it should be normal as it can become quite >>> annoying. >>> Thanks in advance, >>> Marc >> Similar problem. Had the differential checked as a speed shop. Not a >> thing wrong with the unit. When they put it back together, no sound. >> The only change was the posi lube that gets mixed in. The speed shop >> said to only use the Ford posi lube. Have not had a bit of problem >> since. Nice and quiet. As I recall, and I can tell you what it calls >> for, but they used 2 tubes of the Ford posi lube. > > guessing you are talking about the "friction modifier"... helps the > clutches slip when you go around corners... without it they'll chatter > a bit.. "Whale oil" There are synthetics of that stuff now by Amsoil and Synergyn -- TEACHER: Harold, what do you call a person who keeps on talking when people are no longer interested? HAROLD: A teacher |
Hum after rear-end gear change
On Jul 31, 7:27*pm, "WindsorFox<SS>" > wrote:
> 88 Mustang GT Conv. wrote: > > > > > > > On Jul 31, 12:19 am, Zeke-baby > > > wrote: > >> 88 Mustang GT Conv. wrote: > > >>> I've recently had my gears changed in my 1988 5.0L convertible > >>> to 3:73:1. (I only have 152,000KM on the car) There's a humming > >>> noise which comes from the rear-end which gets significanltly > >>> louder between 60-90 KM / Hr. > >>> I was told by the mechanic that this is a common thing with the > >>> gears and should be ignored. > >> Let me guess. *If you're cruising at speed with a light throttle, > >> and then lift your foot off the gas, the noise goes away (or gets > >> significantly quieter). > > >> Sounds like it wasn't set up properly. > > >> Cheers! > > >> * * * * * * * * * * * * * * * * * * * * * * * * * * * * *zëkë > > >> -- > >> '65 Fastback 289/4-speed/3.50s > >> '91 LX Hatchback 5.0/5-speed/3.08s (MIA since Feb'00) > >> '97 GT 4.6/5-speed/3.23s (the winter beater) > > > This is exactly what happens. The noise is less significant (although > > not gone) when the throttle is released. > > > To answer some other questions. The gears were provided by the > > mechanic and I don't know the brand. I'm not a car buff (I like a nice > > car but know little about them) and therefore rely heavily on other > > people's knowledge experience. > > > The car is an automatic and I have 2" flowmaster exhaust (which make > > enough noise on their own) and the humm overpowers them easily at that > > speed range (with the top up or down). > > > Thanks to everyone, I will contact the mechanic and discuss with him. > > > Marc > > * *I think I'd get another mech to check it, someone recommended by > people from a track. Also 2" exhaust? THe stock Mustang pipes are 2 1/4" > the upgrade is usually 2 1/2 or 3" > > -- > > TEACHER: Harold, what do you call a person who keeps on > * * * * * talking when people are no longer interested? > > HAROLD: A teacher- Hide quoted text - > > - Show quoted text - Sry...miss typed and didn't verify. I do have 3" pipes :) Marc |
Hum after rear-end gear change
On Thu, 31 Jul 2008 12:02:03 -0700 (PDT), "John S."
> wrote: >On Jul 31, 6:54 pm, Spike > wrote: >> On Wed, 30 Jul 2008 05:29:27 -0700 (PDT), "88 Mustang GT Conv." >> >> >> >> > wrote: >> >I'm coming to all of you as the experts. >> >> >I've recently had my gears changed in my 1988 5.0L convertible to >> >3:73:1. (I only have 152,000KM on the car) There's a humming noise >> >which comes from the rear-end which gets significanltly louder between >> >60-90 KM / Hr. >> >> >I was told by the mechanic that this is a common thing with the gears >> >and should be ignored. >> >> >Just wanting to get some thoughts/opinions. >> >> >The mechanic I'm dealing with is great and has always done excellent >> >work on the car. He goes over and above what I've asked him to do with >> >little cost. >> >> >I'm just thinking that it should be normal as it can become quite >> >annoying. >> >> >Thanks in advance, >> >Marc >> >> Similar problem. Had the differential checked as a speed shop. Not a >> thing wrong with the unit. When they put it back together, no sound. >> The only change was the posi lube that gets mixed in. The speed shop >> said to only use the Ford posi lube. Have not had a bit of problem >> since. Nice and quiet. As I recall, and I can tell you what it calls >> for, but they used 2 tubes of the Ford posi lube. > >guessing you are talking about the "friction modifier"... helps the >clutches slip when you go around corners... without it they'll chatter >a bit.. Exactamundo! Kept trying to think of the term for that stuff and just drew a blank. :0) |
Hum after rear-end gear change
While everyone loves to blame the mechanic... obviously the boat-person that
built the gearset is an expert, I have found that some gearsets are just plain noisey.... Installation was performed using factory tools in accordance with factory procedures and to factory specs.... and the gears were noisy to some degree or another.... Another R&P, installed exactly the same way, might give no noise at all... The important thing to remember is that your mechanic MAY be the cause of the noise... or he MAY be a victim of it..... There is no assurance that the gearset was perfectly machined. Without knowing your mechanic nor what he has for tools and/or skills.... there is no assurance that there is nothing amiss with the installation. The noise itself.... how loud is the hum????? Is it coming from the gears???? (A dealer several miles away is having trouble with an 07 Mustang GT - noise on decel.... three new gearsets and two wheel to wheel assemblies and the noise is still there... ). My SuperCrew developed the dreaded "tip in" gear whine while it was still under warranty.... I never did have the time or shop space to have the concern addressed..... but it doesn't bother me because playing the radio at normal volume makes the noise disappear.... How objectionable is your noise.... Now... before some of you guys try to rip my lips off.... I have no idea of what any of you do for food..... But I dare you to tell me that you have never.,.... EVER said "that's good enough...". "88 Mustang GT Conv." > wrote in message ... > I'm coming to all of you as the experts. > > I've recently had my gears changed in my 1988 5.0L convertible to > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > which comes from the rear-end which gets significanltly louder between > 60-90 KM / Hr. > > I was told by the mechanic that this is a common thing with the gears > and should be ignored. > > Just wanting to get some thoughts/opinions. > > The mechanic I'm dealing with is great and has always done excellent > work on the car. He goes over and above what I've asked him to do with > little cost. > > I'm just thinking that it should be normal as it can become quite > annoying. > > Thanks in advance, > Marc |
Hum after rear-end gear change
On Sat, 02 Aug 2008 06:30:40 GMT, > wrote:
>While everyone loves to blame the mechanic... obviously the boat-person that >built the gearset is an expert, I have found that some gearsets are just >plain noisey.... Installation was performed using factory tools in >accordance with factory procedures and to factory specs.... and the gears >were noisy to some degree or another.... Another R&P, installed exactly the >same way, might give no noise at all... > >The important thing to remember is that your mechanic MAY be the cause of >the noise... or he MAY be a victim of it..... There is no assurance that the >gearset was perfectly machined. Without knowing your mechanic nor what he >has for tools and/or skills.... there is no assurance that there is nothing >amiss with the installation. > >The noise itself.... how loud is the hum????? Is it coming from the >gears???? (A dealer several miles away is having trouble with an 07 Mustang >GT - noise on decel.... three new gearsets and two wheel to wheel assemblies >and the noise is still there... ). My SuperCrew developed the dreaded "tip >in" gear whine while it was still under warranty.... I never did have the >time or shop space to have the concern addressed..... but it doesn't bother >me because playing the radio at normal volume makes the noise disappear.... >How objectionable is your noise.... > >Now... before some of you guys try to rip my lips off.... I have no idea of >what any of you do for food..... But I dare you to tell me that you have >never.,.... EVER said "that's good enough...". > >"88 Mustang GT Conv." > wrote in message ... >> I'm coming to all of you as the experts. >> >> I've recently had my gears changed in my 1988 5.0L convertible to >> 3:73:1. (I only have 152,000KM on the car) There's a humming noise >> which comes from the rear-end which gets significanltly louder between >> 60-90 KM / Hr. >> >> I was told by the mechanic that this is a common thing with the gears >> and should be ignored. >> >> Just wanting to get some thoughts/opinions. >> >> The mechanic I'm dealing with is great and has always done excellent >> work on the car. He goes over and above what I've asked him to do with >> little cost. >> >> I'm just thinking that it should be normal as it can become quite >> annoying. >> >> Thanks in advance, >> Marc > To be honest, I can't recall ever having said "that's good enough", although I might have. I DO know that on many an ocassion I have said, 'screw this (or similar term)! I've had it/I need a break!' Even, 'ta hell with it'. :0) |
Hum after rear-end gear change
On Aug 2, 2:30*am, > wrote:
> While everyone loves to blame the mechanic... obviously the boat-person that > built the gearset is an expert, I have found that some gearsets are just > plain noisey.... Installation was performed using factory tools in > accordance with factory procedures and to factory specs.... and the gears > were noisy to some degree or another.... Another R&P, installed exactly the > same way, might give no noise at all... > > The important thing to remember is that your mechanic MAY be the cause of > the noise... or he MAY be a victim of it..... There is no assurance that the > gearset was perfectly machined. Without knowing your mechanic nor what he > has for tools and/or skills.... there is no assurance that there is nothing > amiss with the installation. > > The noise itself.... how loud is the hum????? Is it coming from the > gears???? (A dealer several miles away is having trouble with an 07 Mustang > GT - noise on decel.... three new gearsets and two wheel to wheel assemblies > and the noise is still there... ). My SuperCrew developed the dreaded "tip > in" gear whine while it was still under warranty.... I never did have the > time or shop space to have the concern addressed..... but it doesn't bother > me because playing the radio at normal volume makes the noise disappear..... > How objectionable is your noise.... > > Now... before some of you guys try to rip my lips off.... I have no idea of > what any of you do for *food..... But I dare you to tell me that you have > never.,.... EVER said "that's good enough...". > > "88 Mustang GT Conv." > wrote in ... > > > > > I'm coming to all of you as the experts. > > > I've recently had my gears changed in my 1988 5.0L convertible to > > 3:73:1. (I only have 152,000KM on the car) There's a humming noise > > which comes from the rear-end which gets significanltly louder between > > 60-90 KM / Hr. > > > I was told by the mechanic that this is a common thing with the gears > > and should be ignored. > > > Just wanting to get some thoughts/opinions. > > > The mechanic I'm dealing with is great and has always done excellent > > work on the car. He goes over and above what I've asked him to do with > > little cost. > > > I'm just thinking that it should be normal as it can become quite > > annoying. > > > Thanks in advance, > > Marc- Hide quoted text - > > - Show quoted text - Just an update....I picked up the car yesterday from the same mechanic who completely accepted to look into the situation after I contacted him about it. The noise was loud enough that I could not drown it with the radio (I couldn't have a conversation without having to raise my voice at these speeds). The mechanic has adjusted a few things and the noise is barely noticeable (you really have to listen for it) and is in my opinion "normal" (so far so good). Like I said he is a great person and is an avid Mustang fan. He always goes above and beyond and this time around proved that once again. Thank you for all of your advice. It has helped me understand things a little more and in the end my car is back in my driveway running well. Regards, Marc |
Hum after rear-end gear change
"88 Mustang GT Conv." > wrote in
: > On Aug 2, 2:30*am, > wrote: >> While everyone loves to blame the mechanic... obviously the >> boat-person t > hat >> built the gearset is an expert, I have found that some gearsets are >> just plain noisey.... Installation was performed using factory tools >> in accordance with factory procedures and to factory specs.... and >> the gears were noisy to some degree or another.... Another R&P, >> installed exactly t > he >> same way, might give no noise at all... >> >> The important thing to remember is that your mechanic MAY be the >> cause of the noise... or he MAY be a victim of it..... There is no >> assurance that > the >> gearset was perfectly machined. Without knowing your mechanic nor >> what he has for tools and/or skills.... there is no assurance that >> there is nothi > ng >> amiss with the installation. >> >> The noise itself.... how loud is the hum????? Is it coming from the >> gears???? (A dealer several miles away is having trouble with an 07 >> Musta > ng >> GT - noise on decel.... three new gearsets and two wheel to wheel >> assembl > ies >> and the noise is still there... ). My SuperCrew developed the dreaded >> "ti > p >> in" gear whine while it was still under warranty.... I never did have >> the time or shop space to have the concern addressed..... but it >> doesn't both > er >> me because playing the radio at normal volume makes the noise >> disappear.. > .. >> How objectionable is your noise.... >> >> Now... before some of you guys try to rip my lips off.... I have no >> idea > of >> what any of you do for *food..... But I dare you to tell me that you >> ha > ve >> never.,.... EVER said "that's good enough...". >> >> "88 Mustang GT Conv." > wrote in >> messagenews:a324 > ... >> >> >> >> > I'm coming to all of you as the experts. >> >> > I've recently had my gears changed in my 1988 5.0L convertible to >> > 3:73:1. (I only have 152,000KM on the car) There's a humming noise >> > which comes from the rear-end which gets significanltly louder >> > between 60-90 KM / Hr. >> >> > I was told by the mechanic that this is a common thing with the >> > gears and should be ignored. >> >> > Just wanting to get some thoughts/opinions. >> >> > The mechanic I'm dealing with is great and has always done >> > excellent work on the car. He goes over and above what I've asked >> > him to do with little cost. >> >> > I'm just thinking that it should be normal as it can become quite >> > annoying. >> >> > Thanks in advance, >> > Marc- Hide quoted text - >> >> - Show quoted text - > > Just an update....I picked up the car yesterday from the same mechanic > who completely accepted to look into the situation after I contacted > him about it. > > The noise was loud enough that I could not drown it with the radio (I > couldn't have a conversation without having to raise my voice at these > speeds). > > The mechanic has adjusted a few things and the noise is barely > noticeable (you really have to listen for it) and is in my opinion > "normal" (so far so good). > > Like I said he is a great person and is an avid Mustang fan. He always > goes above and beyond and this time around proved that once again. > > Thank you for all of your advice. It has helped me understand things a > little more and in the end my car is back in my driveway running well. > > Regards, > Marc I gotta ask - why the noise in the first place? If he test-drove it, he certainly would've heard what you described (the radio wouldn't even drown it out). If he didn't test drive it, then that's another story. |
Hum after rear-end gear change
On Tue, 12 Aug 2008 17:25:14 GMT, Joe > wrote:
>"88 Mustang GT Conv." > wrote in : > >> On Aug 2, 2:30*am, > wrote: >>> While everyone loves to blame the mechanic... obviously the >>> boat-person t >> hat >>> built the gearset is an expert, I have found that some gearsets are >>> just plain noisey.... Installation was performed using factory tools >>> in accordance with factory procedures and to factory specs.... and >>> the gears were noisy to some degree or another.... Another R&P, >>> installed exactly t >> he >>> same way, might give no noise at all... >>> >>> The important thing to remember is that your mechanic MAY be the >>> cause of the noise... or he MAY be a victim of it..... There is no >>> assurance that >> the >>> gearset was perfectly machined. Without knowing your mechanic nor >>> what he has for tools and/or skills.... there is no assurance that >>> there is nothi >> ng >>> amiss with the installation. >>> >>> The noise itself.... how loud is the hum????? Is it coming from the >>> gears???? (A dealer several miles away is having trouble with an 07 >>> Musta >> ng >>> GT - noise on decel.... three new gearsets and two wheel to wheel >>> assembl >> ies >>> and the noise is still there... ). My SuperCrew developed the dreaded >>> "ti >> p >>> in" gear whine while it was still under warranty.... I never did have >>> the time or shop space to have the concern addressed..... but it >>> doesn't both >> er >>> me because playing the radio at normal volume makes the noise >>> disappear.. >> .. >>> How objectionable is your noise.... >>> >>> Now... before some of you guys try to rip my lips off.... I have no >>> idea >> of >>> what any of you do for *food..... But I dare you to tell me that you >>> ha >> ve >>> never.,.... EVER said "that's good enough...". >>> >>> "88 Mustang GT Conv." > wrote in >>> messagenews:a324 >> ... >>> >>> >>> >>> > I'm coming to all of you as the experts. >>> >>> > I've recently had my gears changed in my 1988 5.0L convertible to >>> > 3:73:1. (I only have 152,000KM on the car) There's a humming noise >>> > which comes from the rear-end which gets significanltly louder >>> > between 60-90 KM / Hr. >>> >>> > I was told by the mechanic that this is a common thing with the >>> > gears and should be ignored. >>> >>> > Just wanting to get some thoughts/opinions. >>> >>> > The mechanic I'm dealing with is great and has always done >>> > excellent work on the car. He goes over and above what I've asked >>> > him to do with little cost. >>> >>> > I'm just thinking that it should be normal as it can become quite >>> > annoying. >>> >>> > Thanks in advance, >>> > Marc- Hide quoted text - >>> >>> - Show quoted text - >> >> Just an update....I picked up the car yesterday from the same mechanic >> who completely accepted to look into the situation after I contacted >> him about it. >> >> The noise was loud enough that I could not drown it with the radio (I >> couldn't have a conversation without having to raise my voice at these >> speeds). >> >> The mechanic has adjusted a few things and the noise is barely >> noticeable (you really have to listen for it) and is in my opinion >> "normal" (so far so good). >> >> Like I said he is a great person and is an avid Mustang fan. He always >> goes above and beyond and this time around proved that once again. >> >> Thank you for all of your advice. It has helped me understand things a >> little more and in the end my car is back in my driveway running well. >> >> Regards, >> Marc > >I gotta ask - why the noise in the first place? If he test-drove it, he >certainly would've heard what you described (the radio wouldn't even >drown it out). If he didn't test drive it, then that's another story. With mine, the more I drove it the louder and worse it got. Since the addition of the posi lube, it's been over a year with zero "noise". Sounds like the mechanic might, no matter how great a guy he is, have forgotten to add the correct lube, or similar. |
Hum after rear-end gear change
88 Mustang GT Conv. wrote:
> > Just an update....I picked up the car yesterday from the same mechanic > who completely accepted to look into the situation after I contacted > him about it. > > The noise was loud enough that I could not drown it with the radio (I > couldn't have a conversation without having to raise my voice at these > speeds). > > The mechanic has adjusted a few things and the noise is barely > noticeable (you really have to listen for it) and is in my opinion > "normal" (so far so good). > > Like I said he is a great person and is an avid Mustang fan. He always > goes above and beyond and this time around proved that once again. > > Thank you for all of your advice. It has helped me understand things a > little more and in the end my car is back in my driveway running well. > > Regards, > Marc I'd really have to have asked why he didn't catch it in the first place. And although the sounds like a good outcome, my rear end did not make a barely noticeable, "you gotta listen hard to hear it" noise when they installed the new rear, it made zero, just like the original. It just sounds like he's guessing at the adjustment. -- "While the fringe on one side hurl epithets at the fringe on the other side, the vast bulk of us sit here somewhere in between asking the eternal question, "What the ****?" - TFrog93 |
Hum after rear-end gear change
Spike > wrote in
: > On Tue, 12 Aug 2008 17:25:14 GMT, Joe > wrote: > >>"88 Mustang GT Conv." > wrote in >>news:6381e917-e4ac-4135-b856-7c10fa6d7ac4 @c58g2000hsc.googlegroups.com: >> >>> On Aug 2, 2:30*am, > wrote: >>>> While everyone loves to blame the mechanic... obviously the >>>> boat-person t >>> hat >>>> built the gearset is an expert, I have found that some gearsets are >>>> just plain noisey.... Installation was performed using factory tools >>>> in accordance with factory procedures and to factory specs.... and >>>> the gears were noisy to some degree or another.... Another R&P, >>>> installed exactly t >>> he >>>> same way, might give no noise at all... >>>> >>>> The important thing to remember is that your mechanic MAY be the >>>> cause of the noise... or he MAY be a victim of it..... There is no >>>> assurance that >>> the >>>> gearset was perfectly machined. Without knowing your mechanic nor >>>> what he has for tools and/or skills.... there is no assurance that >>>> there is nothi >>> ng >>>> amiss with the installation. >>>> >>>> The noise itself.... how loud is the hum????? Is it coming from the >>>> gears???? (A dealer several miles away is having trouble with an 07 >>>> Musta >>> ng >>>> GT - noise on decel.... three new gearsets and two wheel to wheel >>>> assembl >>> ies >>>> and the noise is still there... ). My SuperCrew developed the dreaded >>>> "ti >>> p >>>> in" gear whine while it was still under warranty.... I never did have >>>> the time or shop space to have the concern addressed..... but it >>>> doesn't both >>> er >>>> me because playing the radio at normal volume makes the noise >>>> disappear.. >>> .. >>>> How objectionable is your noise.... >>>> >>>> Now... before some of you guys try to rip my lips off.... I have no >>>> idea >>> of >>>> what any of you do for *food..... But I dare you to tell me that you >>>> ha >>> ve >>>> never.,.... EVER said "that's good enough...". >>>> >>>> "88 Mustang GT Conv." > wrote in >>>> messagenews:a324 >>> ... >>>> >>>> >>>> >>>> > I'm coming to all of you as the experts. >>>> >>>> > I've recently had my gears changed in my 1988 5.0L convertible to >>>> > 3:73:1. (I only have 152,000KM on the car) There's a humming noise >>>> > which comes from the rear-end which gets significanltly louder >>>> > between 60-90 KM / Hr. >>>> >>>> > I was told by the mechanic that this is a common thing with the >>>> > gears and should be ignored. >>>> >>>> > Just wanting to get some thoughts/opinions. >>>> >>>> > The mechanic I'm dealing with is great and has always done >>>> > excellent work on the car. He goes over and above what I've asked >>>> > him to do with little cost. >>>> >>>> > I'm just thinking that it should be normal as it can become quite >>>> > annoying. >>>> >>>> > Thanks in advance, >>>> > Marc- Hide quoted text - >>>> >>>> - Show quoted text - >>> >>> Just an update....I picked up the car yesterday from the same mechanic >>> who completely accepted to look into the situation after I contacted >>> him about it. >>> >>> The noise was loud enough that I could not drown it with the radio (I >>> couldn't have a conversation without having to raise my voice at these >>> speeds). >>> >>> The mechanic has adjusted a few things and the noise is barely >>> noticeable (you really have to listen for it) and is in my opinion >>> "normal" (so far so good). >>> >>> Like I said he is a great person and is an avid Mustang fan. He always >>> goes above and beyond and this time around proved that once again. >>> >>> Thank you for all of your advice. It has helped me understand things a >>> little more and in the end my car is back in my driveway running well. >>> >>> Regards, >>> Marc >> >>I gotta ask - why the noise in the first place? If he test-drove it, he >>certainly would've heard what you described (the radio wouldn't even >>drown it out). If he didn't test drive it, then that's another story. > > With mine, the more I drove it the louder and worse it got. Since the > addition of the posi lube, it's been over a year with zero "noise". > Sounds like the mechanic might, no matter how great a guy he is, have > forgotten to add the correct lube, or similar. My experience has been that if the posi lube isn't added, things are still fairly "normal" until you make a turn. Then it's more of a chatter than a whine. I still think the guy might not have adjusted them properly (not enough time?), then when he got it back he had to do it right. Guess we'll never really know... |
Hum after rear-end gear change
On Wed, 13 Aug 2008 00:41:18 GMT, Joe > wrote:
>Spike > wrote in : > >> On Tue, 12 Aug 2008 17:25:14 GMT, Joe > wrote: >> >>>"88 Mustang GT Conv." > wrote in >>>news:6381e917-e4ac-4135-b856-7c10fa6d7ac4 : >>> >>>> On Aug 2, 2:30*am, > wrote: >>>>> While everyone loves to blame the mechanic... obviously the >>>>> boat-person t >>>> hat SNIP >>>> Regards, >>>> Marc >>> >>>I gotta ask - why the noise in the first place? If he test-drove it, >he >>>certainly would've heard what you described (the radio wouldn't even >>>drown it out). If he didn't test drive it, then that's another story. >> >> With mine, the more I drove it the louder and worse it got. Since the >> addition of the posi lube, it's been over a year with zero "noise". >> Sounds like the mechanic might, no matter how great a guy he is, have >> forgotten to add the correct lube, or similar. > >My experience has been that if the posi lube isn't added, things are >still fairly "normal" until you make a turn. Then it's more of a >chatter than a whine. > >I still think the guy might not have adjusted them properly (not enough >time?), then when he got it back he had to do it right. Guess we'll >never really know... "Chatter" might be one way to describe it. Long ago and far away, there was a toy comprised of a string of squares held together with cloth bands. When you flipped the top one over, like dominos, the rest turned over with a CLACK CLKACK CLACK CLACK CLACK CLACK! Now, that's sorta what it sounded like. You're right, mostly during a turn with the left turn being far worse than the right, and when backing. Not what anyone, especially the owner wants to hear! |
Hum after rear-end gear change
Spike > wrote in
: > On Wed, 13 Aug 2008 00:41:18 GMT, Joe > wrote: > >>Spike > wrote in m: >> >>> On Tue, 12 Aug 2008 17:25:14 GMT, Joe > wrote: >>> >>>>"88 Mustang GT Conv." > wrote in >>>>news:6381e917-e4ac-4135-b856-7c10fa6d7ac4 : >>>> >>>>> On Aug 2, 2:30*am, > wrote: >>>>>> While everyone loves to blame the mechanic... obviously the >>>>>> boat-person t >>>>> hat > SNIP >>>>> Regards, >>>>> Marc >>>> >>>>I gotta ask - why the noise in the first place? If he test-drove it, >>he >>>>certainly would've heard what you described (the radio wouldn't even >>>>drown it out). If he didn't test drive it, then that's another story. >>> >>> With mine, the more I drove it the louder and worse it got. Since the >>> addition of the posi lube, it's been over a year with zero "noise". >>> Sounds like the mechanic might, no matter how great a guy he is, have >>> forgotten to add the correct lube, or similar. >> >>My experience has been that if the posi lube isn't added, things are >>still fairly "normal" until you make a turn. Then it's more of a >>chatter than a whine. >> >>I still think the guy might not have adjusted them properly (not enough >>time?), then when he got it back he had to do it right. Guess we'll >>never really know... > > "Chatter" might be one way to describe it. Long ago and far away, > there was a toy comprised of a string of squares held together with > cloth bands. When you flipped the top one over, like dominos, the rest > turned over with a CLACK CLKACK CLACK CLACK CLACK CLACK! > Now, that's sorta what it sounded like. Yeah, I remember something like that but I'll be damned if I know what it was called. I'm not too far behind you in years... > You're right, mostly during a > turn with the left turn being far worse than the right, and when > backing. Not what anyone, especially the owner wants to hear! That's for sure. My Dakota has a limited slip, and if I let it go too long w/o changing the fluid, the friction modifier loses some of its effectiveness and the rear starts chattering on turns like a bunch of chipmunks. First time I heard that I freaked, thinking the rear was exploding. A quick trip to the dealer and a fresh fluid change with new friction modifier made it as good as new. |
Hum after rear-end gear change
It IS normal. Don’t listen to anyone that’s says different and to find a new mechanic. If you go to a beefier set up or different gears, like racing gears, it will whine much louder. Try auto cross or drag racing with a differential and gears set up for that. It’s as loud as can be depending on the gear ratio. Especially in a coupe that doesn’t have very good sound dampening.
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