Just my damn luck. The rearend I got came off an '86 Starion, and yet the posi unit looks like it came off an '88 or '89 and si too big for my front axle. That just ruined my day. I'm going to post it on craigslist and sell it and the pumpkin (keeping the "sub frame"). Now I'm going to locate one that WILL FIT. I'm just going to leave the truck tore apart until I find one that fits. Not going to put it all together, then tear it back down to put one in. I leaned that you don't "double handle" work, do it once and be done. Lol can't win them all, at least I can get measurements and fine compare against another unit.