National Firebird and Trans Am Club
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Questions and Answers - Loud Noise in Rear
this is an excerpt from the articles appearing in the EAGLE

National Firebird and Trans Am Club Message Board
More items in the tech section of the club
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Please note: Questions and answers are provided for information and advice purposes. No liability either express or implied is assumed by reliance on the information presented either by the writers or the NFTAC.

Some or all of the below is from our message board at and this is just a part of what appears there and in the member magazine.

Also be sure to see our message board on our website for immediate help from fellow members.

Loud Noise from Rear

Q:     Anyone have any suggestions for resolving a loud thunk from the right rear wheel of my 2002 T/A WS6? It occurs whenever going over a significant bump or pothole in the road - a resounding thump that can be very loud, depending on speed, and sounds an awful lot like bottoming out.

I’ve had the rear shocks and coil springs replaced, and both of them improved the ride quite a bit, but only reduced, didn’t eliminate the thump. Still occurs at anything over 25 MPH.

Neither my regular mechanic nor a suspension specialty shop have been able to identify the source, much less fix it.

Have your heard of similar experiences of the problem and how it was managed to be solved?

Tom Connus
Los Angeles, California

A;     My Trans Am and many others have the rear bump stops replaced. Since the GM part is hard to find and very expensive I used stops from a Jeep that are widely available. You only need to trim off a small section to make it fit- very east with a cut off wheel. The stops wear out on these cars and were probably defective.

Also check to see if your spare tire is secured properly. I had that problem once. Made a clunking noise.

Good luck.
Rob Thomas

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