When I accelerate I notice a thunk/thump in the right rear of the car now that I've swapped out the rear end (drum to disc). I've checked the spare & driven the car with & without it but no change.

Any ideas?

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1987 Z28 (305 LG-4, 4bbl 5-speed Black & Silver . . .
Dual Snorkel Air Cleaner
4th Gen Seats
& 2002 WS6 TransAm . . .
NRA/AMA/FOP/IUPA/Blue Knights

 

is it when you punch the gas? not holding it just punching it and letting off, making the car jump?

 

It happens whenever I let the clutch out fairly quickly, but not under hard accel, sort of like something is giving a little!

I thought I read somewhere a topic of preload or something like that about the sway bar or the lower control arm mounted under pressure.

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1987 Z28 (305 LG-4, 4bbl 5-speed Black & Silver . . .
Dual Snorkel Air Cleaner
4th Gen Seats
& 2002 WS6 TransAm . . .
NRA/AMA/FOP/IUPA/Blue Knights

[This message has been edited by RadarRunner (edited August 17, 2002).]

 

Its your tranny mount. Easy and cheap fix.

 

Definately try the trans mount. It makes a clunk that sounds like it's coming from the rear end.