I just did this fix two days ago and I used the parts from Cardone (part number 42-91 available online at Discount Auto Parts). A great resource is in the 94/95 FAQ sticky at the top of the 94/95 Tech section.
The part number listed above worked well for me, BUT the whole assembly did not work. I just used the 3 new bushings, then cleaned up my window motor and inserted the new bushings. Absolutely perfect now and really quiet. When I tried to use the Cardone assembly, the whole assembly was much smaller than the original and the teeth on the center piece looked a little different. No big deal, all you need is the bushings and I couldn't find any locally.
Do this yourself and it will only take you about an hour per door, maybe less after you've done one door. Easy to do, just take your time and read the instructions. Print out Joe's instructions on the FAQ sheet and you'll be done in no time. The instructions were perfect.
Joe (VibrantRedGT): In case no one's thanked you for the window motor write up......thanks. Instructions worked out great and was thrilled to fix this myself with absolutely no problems.