[simplechamp]

Yes, the alum outer diff cases are fine, it's the ring gear and plastic diff cups that aren't seating right. The ring gear will wobble when under tension of the screws, almost like the holes are misaligned by a small amount and causing the diff cup to flex. When I assemble the diff it is fine until I put the screws in, then it gets messed up with the screws tightened.

I was going to get alloy diff cups, but Mike said he didn't think there were any that are compatible. Maybe we can find one to work? Either way, I'd rather just fix the issue without spending more money.