Here's the diffs. Innovative RC alloy cups, HotBodies hardened steel internals, Ofna hard-coated alloy bevel shafts, and Sportwerks TiNi ring gears.
The Slipperential needs a rebuild and I might rebuild it with one of the Delrin spurs. As of right now the regular center diff is going in.
Second pic is the shock towers. Stock X2 CF front is on the left, and the modified X2 CF rear is on the right. The rear is now about the same profile as the front with same shock mounting positions.