Yep, like Racerdan suggested, a Dakota is the best donor. Lots of older 2 wheel drive trucks out there. I have a 1996 and 2000 Dakota 2 wheel drive trucks. The 3.9's and overdrive automatics would be good. The 96 and older trucks don't require a module to operate the tranny though. (I don't think). Those transmissions would require modifying the tunnel but worth it in the long run. Heck, you could use the driveshaft and rear end also. Cheap parts. Most of those 3.9's have timing chain rattle so a new chain and gears and a tensioner would be good. Keep us posted if you start the project.