Im having problems with my ball diff in my xray evo 2. ive rebuilt it a couple of times and its always been good, but just before the nationals i rebuilt it and it slipps really easily between the balls and the diff rings. any suggestions to what might be wrong with it would be greatly appreciatted.

when i rebuild them i give the diff rings and thrust washers a quick rub on some 1200 grit wet dry to get the grooves out of them, a little bit of grease, put it together exactley as the xray manual says and its all good.

ill probably put a rebuild kit in the diff but if anyone knows what could be wrong with it please reply.