Slipperntial my way. Maybe.

[Finnster]

Basically truggies/buggies to have their spur gears mounted directly to the center driveline (ie the centerdiff in their case) eliminating the transmission. You only really need a tranny if you wish to have more than 1 gear, otherwise you aer just stacking on gears (and increasing CG) for no good reason.

The sliperential basically eliminates the tranny and gives a MT (this case the Gmaxx or G2R) a buggy/truggy like drivetrain. Also, nitros have a clutch, so having a direct drive isn't that much of an issue, but given the solid pinion and huge TQ of a BL motor @ 0 rpm, its very helpful to have some sort of slip to not kill the driveline (esp as hardened pinions are rare, so plastic spurs are needed) and wheelie everywhere.

As an aside (I'm not trying to bust balls any ) but I've noticed you often spell "series" as "serious". First noticed it in a battery post. Just makes for a funny reading. Like "these gears are not screwing around, they are in serious.."