This 2-piece drivetrain upgrade set is an aftermarket replacement for Axial Racing Yeti XL gearboxes, supplied as a 2pcs set. The kit pairs a 32-pitch aluminium spur gear adapter with a hardened 64-tooth steel spur to replace the common plastic adapter and gear when added durability or a metal-on-metal pairing is preferred.
The aluminium adapter gives a more rigid mounting surface to keep the spur concentric under load, while the hardened steel 64T spur offers improved wear resistance compared with many stock plastic gears. This setup is aimed at hobbyists seeking longer service life and consistent mesh during crawling and trail use at scale.
Installation notes: check spur-to-pinion mesh before closing the gearbox, confirm the adapter matches the Yeti XL gearbox mounting register, and use suitable threadlock or torque on retained fasteners. After fitting, verify backlash and runout as part of normal tuning.
Fit this adapter and steel spur to improve drivetrain reliability on Yeti XL builds where a steel gear paired to an aluminium adapter is preferred; always confirm mesh and fit during installation.
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