RE: Killed rear diff on my maxx?
The EMaxx diff is more durable than a stock TMaxx diff and will bolt right in with a few mods and just as cheap on ebay.
If your running stock slider center shafts all thats needed is to grind the nub off the end of the yoke to slip on the slightly shorter input pinion shaft.
If your running center CVD's or dog bone and cups you can swap the input pinion from the old diff to the emaxx diff and all is well.
If your diff collar is the old off center pin type, it can be ground down to fit or use the newer center pin diff collars.