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Old August 12th 08, 05:51 PM posted to rec.autos.makers.ford.mustang
88 Mustang GT Conv.
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Posts: 6
Default 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
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