Strange clunk from drive shaft? if I stop hard or put it in drive or reverse it clunk

just got my tranny rebuilt cause previous owner didn't care about a thing on it but anyways when I do a sudden stop I feel the clunk im pretty sure its a motor mount or because of extra play in the center support bearing but I could be wrong any ideas? anything will help guys thanks.

 

u joints?
do u 1st gen guys deal with axle wrap?

 

I believe i have axle wrap, when i stop the slowly roll forward there's a major clunk that i can hear and feel (only feel it a little), but i don't feel or hear it on acceleration.

But with our leafs being as crappy as they are, yes we do deal with axle wrap.

 

I don't think so but I will find out first thing in the morning if its the U joints cause that's what I thought it was a first, so ill just take the drive shaft off tomorrow

 

I have the same issue with my 2wd and its the U-Joints.

 

I had a similar sounding clunk and after a while at the mechanic's shop he found that my lower control arm was pulling apart. He Replaced the lower control arm and it seemed to fix it so far(got my truck back a few weeks ago).