Again, thanks for the help!
Not going for show points, the truck is a Frankenstein with a 38 frame, 36 cab, 37 bed, and a 40 flathead...
LOL.
But I'm keeping it 6v positive ground and cable brakes from the 38. If I ever get a chance to drive it I might then play around with swapping in a T5 and lowering the front and rear just a bit.