Because this truck is turning out super nice and because I didn't already have enough to do, I pulled the 300k mile 1UZ VVT-i drivetrain in favor of a 130k mile 2UZ VVT-i that's also 8 years newer AND it's already 4WD so no adapter needed. I'll be running a Toyota transfer case now. Simplified things quite a bit and I think the end result will be better. One step back I guess.