Quote:
Originally Posted by bennelson
Different differential gears (I don't know too much about this, but I think with the extra diesel torque, I could go to a little higher gear in back.
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I don't know how much torque that diesel is going to put out, but I did research and found that the VW 2.0 TDI put out basically the same peak torque as the 4.3L available in the Dime-series. The 4.3L had gears down to 3.08 in the manual version, and was still plenty peppy. You're either going to have 3.73 or 4.10, so you could probably stand to drop a much taller set in there. The diffs in those trucks were basically used in everything that had a diff in Chevy and GMC, so there are plenty of ratios to be had. Try 2.73 if you don't mind making the engine and clutch work a little bit harder from a stop.
Also, consider getting a different transmission than the one you have currently. The NV1500, which is what was equipped for the 2.2L, is a notoriously weak transmission. It dies pretty consistently when the 2.2L is boosted to 10psi.