MAYBE on the 205/231 bit but...
The AW4 is the same box as the toyota A304 that the tuner guys push over 500 hp in the supras. Neither the 4.7 or 4.3 would be anywhere near too much power for it.
As for the t-case, mine held up to my dumbass shifting into R at 35 mph in patchy snow, spun the wheels backwards at speed before it stalled out. Still runs like a champ.
I'd say stay with the mopar/aisin-warner parts, the 4.0 makes the vast majority of its torque at pretty low rpms, but also the reason I say that is it's what I know, so I understand just building what you're more familiar with.
Either way it sounds like a cool build, how bout some pics!
