Does maxx diffs works in Revo diff cases?

[zeropointbug]

Well crap then... a bunch of R/C enthusiasts from my town are having a get together tomorrow, I just sure hope the differential doesn't go on me when I show those nitro cowards up!

The diffs have always had a 'stiffer' spot in the rotation, but the front one is very minimal now, but the rear seems to have got alot worse... it feels like 6 teeth on the ring gear are clicking when i turn it, very notchy.

Does anybody know how I can remedy this? Thanks.