I've noticed with the Tornado (1/10 scale) that they offer the regular diff and diff parts, and also a "heavy duty" diff, and parts.. Maybe they will do the same with their other models? Im imagine it's just the "ultralight" series of models that's having this problem? Like Formula said, maybea diff from a different model (ie: XTRHurricaneor Monsoon) would fit and be made of the better metal?