[Thunderbruiser]

well you'll have loads of slip....mods are

using associated diff balls in the tranny two packs(this is supposed to increase the diff action)
Either Run Heavier Spring(so slipper will be tigter) or run rs4 hub and eliminate slipper all together....
I also hear you can use ofna diffs...but e-maxx would work cause it's 32pitch gears for more options
also you'd prolly wanna modify your motor plate