I recently bought this 85 2.8 V6 and I’ve basically had to redo the top end over a head gasket leak (possibly overheated). Got to putting the v-belts on and noticed my belts were not even close to being straight. After further research I believe the pulleys that was used on the motor in a tight spot rigged situation. Anyways I can’t find any sort of information on original water pump 3 groove bolt-on long pump Pulleys because I can’t get it to align with crank pulley or accessories. Shims I think won’t work it’s almost 3/8 or 1/2 to far rubbing the hell out of the water pump shaft. I’m at a loss




Crankshaft pulley

 

The 2.8 V6 that GM supplied to Jeep was an option in almost every GM car and truck back then.
​​​​The GM 3.4 liter that later replaced the 2.8 looks the same and bolts right in where a 2.8 came out.

Most wrecking yards have subscriptions to Hollander Interchange books. My suggestion is bring a box of donuts and ask for help finding out what other makes models and years use the pulleys you need.

Here's a link to an index to help you get started out by looking up the Jeep factory part numbers for your pulleys https://xjjeeps.com