Noise when going over small road irregularities

9 Deuce GT

Member
Dec 10, 2003
550
1
16
Geneva, NY
I know these types of things are hard to detect from a thread, but maybe you guy's can give me a place to start looking.

Last year I noticed a weird noise when going over any type of bump in the road. It sounds like it is coming from the trans area. I originally thought it was the parking break cable rubbing the drive shaft, but that is not the case. I have the car lowered and was wondering if that has caused some sort of mis-alingment with the rear end/driveshaft.

Could body flex also be a problem?
 
Well transmission area, could be

1. Bad trans mount

2. Bad bushings in the Crossmember

3. Also, check the busings in the upper control arms, and the bushings in the upper part of the 8.8 axle housing. They can go bad, I just replaced the ones in the housing, they were blown out really bad. They also caused my wheels in the rear to be aligned poorly. They were 5.99 each at Autozone, and PITA to get out.
 
By process of elimination, hopefully I can figure this out.

The crossmember bushings are all new. I did a clutch job 2 October's ago. The problem started then. I had to replace that clutch this spring, (long story), and the noise is still there.

The tranny seems to move around more than I remember when hitting any bumps in the road. I will replace that mount soon.

I will have to check all rear end bushings.