Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Vibration ?

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Old 08-28-2012, 12:32 PM
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Car: 1988 IROC-Z28
Engine: L98(383tpi) modified
Transmission: 700R4 rebuilt
Axle/Gears: 3:73 10bolt rebuilt
Vibration ?

I have a 1988 IROC modified throughout rebuilt 700r4 . When I'm cruising in Overdrive at about 50mph to 65mph I feel and hear vibration. It doesn't seem to get worse the faster I go, and it also seems to stop when I'm over 65mph. I had considered it to be unbalanced rims or drive-shaft.
Was wondering what you guys think?
Old 08-28-2012, 01:26 PM
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Car: 1987 iroc
Engine: 383 TPIS intake, Dyno Don headers
Transmission: 700R4 w/Pro-built Auto/transgo 2-3
Axle/Gears: 3.27/3.70 borg warner 9 bolt
Re: Vibration ?

Don't forget to check your tires also. An out a round tire, lost wheel weight, broken belt in the tire. Vibrations are a bear to find. Bent axle hub, u joints, bad shock etc. For what it's worth, I changed out my locking lug nut on all four wheels and my vibration is not as bad at 70 anymore. I don't know if the little extra weight of each nut made a difference or not, but the vibration i had is not noticeable now.

Last edited by red rock; 08-28-2012 at 01:31 PM.
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