Hey everyone, I have some questions about the doubler and what stuff I need to look for to pull this swap off. First, The vehicle I want to put this set up in is a '71 Jeepster. I currently have a TH400 with a Dana 20. What tailshaft do I need? What 203 reduction box do I need? How doable is this? I'd like to keep my TH400. Right now vehicle has a 225 V6 (soon to change). Any info would be greatly appreciated. Thanks. Rondo I don't need no stinkin' signature!