TRAXXAS CRANIAC Monster Truck Aluminium Spur Gear Adapter + Steel 60T & 15T by GPM CRA156015T  [CRA156015T]

Aluminium spur adapter and steel gears

This GPM aftermarket set supplies an aluminium spur gear adapter together with hardened steel gears sized 60T (spur) and 15T (pinion), offered as one set for TRAXXAS CRANIAC Monster Truck owners. The components are intended to replace the stock spur adapter and gears, improving wear resistance in the drivetrain and providing a stable mesh for tuning differential and gearbox behaviour.

The aluminium adapter holds the spur gear in correct alignment with the motor pinion, while the steel 60T spur and 15T pinion are used where metal gear durability is preferred over plastic. This set is useful when running higher-torque motors or extended hobby use where gear wear and deformation are a concern. Installation requires basic disassembly of the gearbox and re-meshing the spur and pinion with correct backlash.

Practical notes: check shaft runout and ensure the adapter mounts flush without play, use proper thread lock on mounting hardware if the original design calls for it, and verify spur-to-pinion mesh on both low and high throttle runs before final assembly. This set is an RC-scale replacement intended for model maintenance and tuning only.

Choose this set when you want a metal-on-metal gear pairing and a stiffer adapter mounting for routine driving and tuning of the CRANIAC drivetrain; verify fitment and gear mesh during installation to prevent premature wear.