HI Mike; Happy New Year. Well the frame is all painted and I have the pullies figured out; Trying to decide on a rear end/spring combination. I know scratch has a truck 8 3/4 and that would be the easiest but I am open to other combinations. I'd like to get the complete drivetrain complete in the next month or so, so I can move on to the body work. Did you ever find out what rear is under your parts truck? Talk to you soon.