Traxxas Differential spool

[Serum]

A spool is worthless on high speed MT's. The problem starts with the tires, when one tire is larger than the other, the problem starts, since an MT is rather instable (or a truggy, with the same size tires). If one tire gets smaller than the other, (due to bouncing, accelerating or such) the truck starts to dance on the rear wheels. caster and toe in aren not offering too much help. Once a truck starts to bounce like that, the difference in the tires is 1" with ease, an unstable truck is the result.

A spool and high speed straight running trucks are not a good combination.