Sometimes while turning slowly while on the brakes I hear a popping/clunking noise coming from underneath the car. It is not the brakes themselves because I can almost feel the popping in the car from the rear section, I was thinking that the previous owner had the rear end fluid changed (I have the records) and the shop probably did not use the GM Llmited slip additive. This sometimes causes noises to come from the rear end because the clutches are not disengaging. Comments, Solutions, Possibilties,

Please advise

Thanks Robert

 

mabey a panhard bar. that is what mine was when i heard a clunking from under the car while turning. i may be the bushing or it may just be loose. it is worth taking a look at i think

 

I have the same thing going on. Only happens on right turns.

 

I had that happen and replaced the posi unit with a Zexel-the problem went away. I think that it is rearend related. My .02.

 

posi additive from gm.