I think that the front U-joint is a spicer 5213x 1330 joint and the rear is a 5212x 1330 joint. I thought I remember one of them having mismatched cap sizes when i replaced them with greasables a while back but can't remember for sure. Anybody remember know this. I've used our fantastic search function to minimal avail. The things are squeaking me into an insane asylum.

Thanks

 

When I measured my front u-joint when doing my 80 swap a while back, my stock joint was the same cup diameter all the way around. I don't know if your longer drive shaft makes a difference or not.

 

looks like a spicer 790 in front and 793 in back. We'll see tomorow when I to try and put it in!