[lincpimp]

Hey Joey, looks like you have most of it... I have built a few gp savvy conversions, one on a old 21 and another with the flm chassis and new X SS kit. They seem reasonably straightforward, but i am using stock trannies in mine. Bithead has a cool looking savvy/hellfire hybrid that might give you some ideas on the center diff. He has a thread around here, think the truck is named brimstone, try searching that.

Metalman also has a savvy with a custom mounted center diff, check that out too.

I am just sticking with the stock 2 speed tranny locked in 2nd gear, should work well for my purposes...