installed new rear diff mount. still clunking from the rear

confused now. tighten all bolts. :shrug: what should i check next?

clunking when you get off/on the gas, like the classic rear diff clunk, right?

the next suspect is the subframe itself-- check that it's properly and tightly attached to the underside of the car. go through each of the bolts and check the torque. If okay, then check the subrame bushings-- when were they replaced, if at all?? there's definitely subframe movement causing the clunking, then you have to check all the possible places where movement can occur...

any way you can attach a video cam down there and drive to see where and how much movement you are seeing?

if it's clunking going over bumps & not an off throttle clunk then it's most likely your sway bar endlinks need replacing.

Mine clunks when taking off from a stop sometimes. Still don't know what it is......

might sound weird but on mine....the muffler hanger is a little weak so it hits the sub frame, flex pipe is new and tight. idea is to just grab the muffler and shake a little mainly up and down.
-steve

edit:makes noises over bumps (like sway bar links) durring speeding up or slowing down.