I'm wanting to run an NP205 with Dana 60's front and rear. The issue is the output shaft for the front axle, the GM and Ford T-cases are on opposite sides. I may be going with a TH400 if it will bolt up to a 5.3 or 6.0 fairly easily. I would prefer to start out with a HD drivetrain instead of replacing parts as I go. I sold the Atlas II I picked up w/ the TH400 I bought which will pay for most of my drivetrain after cleaning up the TH400 it had a cracked case and shelled gears. I didn't look at it too much when the guy was pushing to sell it I was more interested in the built, shiny twin stick Atlas II t-case that was bolted to it.