Looked into the axle thing a while back. As I can probably get an axle for $150 to combine the two and shorten to center the pinion. BUt when adding in welding and time (most guys wont touch it) ..... didnt look much better - but again a good idea.
I mocked up a trapeziod tank (10x10" at trans end and 9"x9" at diff end) and confirmed issue is the crossmember clearance ..... I'll have to "notch" two 6 inch wide sections on the top of the tank for it to sit more flush to frame.
