What may be making my truck clunk when I go into drive/reverse?

Tom

Active member
Its a 91 full size blazer. Within the past few months a I had a new Transmission mount put on. I've always had the clunking for a while, and yesterday changed all the u-joints in the front and rear drive shafts. Theres still the clunking when i go into drive and reverse, and I'm so confused. What else could it possibly be? It's not too loud anymore, but still very noticable. The truck also jerks a bit.
Tranny/Diff/Transfer Case fluids have also been changed in the past few months
 
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