mriccucci- A center diff on the stock 3906 or 3905 chassis would be entirely possible (anything is possible with the right tools & some imagination). I would envisage something like a center diff unit taken from a 1/8 buggy/truggy, mounted to a metal/CF plate, and then bolt that to the chassis rails/braces, so that the whole unit pokes up through the hole (which would need enlarging) in the middle of the chassis- then just run the center driveshafts to the front and rear diffs. The motor would need to be bolted to a seperate mount, above the chassis and be adjustable up * down for gear mesh. Not the simplest idea, but do-able with a little effort.
Yep, bling can wait, so long as the mutant truck actually runs, thats the important thing
