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Old August 1st 08, 03:44 AM 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 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
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