PureSilver

Our '89 six-speed has a rubbing sound (whish, whish) coming from the left rear that is audible if you are near a high curb or jersey barrier. It recently started a 'bang, bang, bang' if moderate throttle is used, generally on a slight turn (noticed it from a left turn lane I was starting from).

Under the car, all seems tight, no real play in half-shafts. Is this likely U-joints, or possibly something else?

84vette96

It could be wheel bearing hub assembly. Jack up rear of car ,pull and push on outer edge of tire. There should not be mutch movement.

jrzvette

There are 6 u-joints; 1 at each end of each half-shaft, 1 at each end of the drive shaft. Check them all.

PureSilver

Thanks! Found partially destroyed U-joint at left outboard...