A genuine Arrma replacement for the Typhon Grom's centre driveshaft — the steel spine of the drivetrain, carrying the motor's full torque from the centre of the chassis to both diffs. When it's healthy, you never think about it; when the hex ends round off after one hard launch too many, you get the classic symptom: motor screaming, wheels doing nothing. This is the part that fixes it.

Built for the Abuse

The centre shaft takes more punishment than any other driveline component in a 4WD basher — every full-throttle launch, every gear change of direction, every landing loads it — and Arrma builds this one accordingly: steel construction for toughness, with hex-shaped drive ends for positive engagement that transfers power without the slop that accelerates wear. One 177mm shaft per pack, made to the same spec as the factory-fitted item.

Fitment

Confirmed for the Arrma Typhon Grom, and listed by specialists for long-wheelbase Grom chassis generally — if you're fitting to another Grom-family model, thirty seconds with your manual's exploded parts view (free on Arrma's site) confirms whether ARA311224 is your shaft before you order.

While You're In There

If the shaft's hexes have rounded, inspect the mating parts — the centre driveshaft coupler (ARA311225) wears against this shaft and frequently needs replacing in the same repair; fitting a new shaft into a worn coupler shortens both their lives. The pair together is the complete centre-drive refresh.