I have a 87 LB 4wd. I put a 8.8 out of a explorer in mine.... Here is a link to the swap. Installed a 8.8 rear and more!! - DodgeForum.com
In addition, I put a nv3500 transmission, and plan this winter to put a 5.9 magnum in it.
The swap is about as straight forward as a swap can be. The explorer rear is about 2.5 in. narrow compared to the orig. 8.25 in the truck.
Good luck and I look forward to watching your progress.[/QUOT
Thanks for the link that’s a cool build. Did you reuse the factory perporional valve? I am going to install a line lock on mine. So thinking about removing mine and just add a adjustable one for the rear disc brakes