HELP PLEASE 502 DIFF

[rc10fan]

Hi guys can anyone shed some light on the diffs and best way to build them. I have rebuilt these 3 times to the exact method described in the instruction booklet. i have also followed lee's advice on methods for building the diffs.

The problem i having is that no matter how i build them and tighten them they either slip of the car pops wheelies. The slipper is set as booklet and i have tried re setting that to but with no avail. I have used all new ceramic gost and buds balls all round but still have the same problem. Lee suggested in his tips to fully tighten the diffs then back them off 1/8th of a turn, but still i have the same problem. i have used new diff plates new balls new this that and the next thing. HELLLLLLLP

Thanks