black89gt

ok guys i have a 89 vert with an sn95 rear end. ever since after the conversion, when im driving at around 40 or so and let off the gas you can feel soemthing like clunk clunk clunk. like the car is bucking back and forth. i checked all the bolts on the shsocks and control arms and they are all tight. and i checked the ujoints too and they are still good.

i am thinking that the upper bushings are bad? any suggeestions?

TENGRAM

check your driveshaft bolts. these are known to work themselves loose.

dimebag

check the universal joint

88stangaruu

yes check the driveshaft bolts. Had that happen to me, let off the gas and it felt like the whole car was coming apart. lol. Wouldnt feel like that whit me on the gas, only when i let off.

Boss_Hotrod

Driveshaft bolts. When we put the tranny back into our car I forgot to tighten the bolts and it made a horrible racket. Tighten them up and it went away. Put some thread lock on the bolts to help keep them from backing out.

black89gt

they are all tight....i just changed my U JOINTS and torques the driveshaft bolts in with an impact wrench. it also still happened right after when i took it for a test drive down the street.