Ultralite diff cases

[Brokenparts]

well, I dont have $300 to spend on a set of 8 spyder diffs. The stock diffs are still holding the power of a Castle 1717 on 4s and I dont have any possible way to gear my truck any higher at the moment without having a custom pinion made. The motor is so big that it is actually resting on the transmission case so I do not have room to use a smaller spur gear. 1/8 diffs lower your gear ratio.

From what I understand, the only thing breaking the ring and pinions on the maxxes is the plastic diff housing separating and causing the teeth to skip, eventually destroying them. I would think that an aluminum diff housing and cup would help solve this issue.

Will Xray diffs fit the 7.5 housings? I have an old XB8 laying around in pieces is the only reason I ask.