This aftermarket assembly replaces the original spur interface on the TRAXXAS CRANIAC Monster Truck, providing an aluminium mounting adapter and hardened steel 60T and 14T gears. The upgrade targets drivers who want reduced flex and steadier mesh during high-torque use across mixed surfaces.
Fitment notes for competent hobbyists: remove the stock spur assembly, secure the aluminium adapter to the gearbox or carrier, fit the 60T spur and 14T pinion, then adjust motor position or shims to set correct backlash. Use threadlocker on metal-to-metal fastenings and verify that bearings run free before first trial.
Tuning advice: switching to an aluminium adapter improves alignment stiffness versus plastic parts, and the steel gear pair resists wear and deformation, helping to preserve consistent engagement under repeated loads.
Fit this set when you need a firmer spur mount and harder wearing gears for TRAXXAS CRANIAC rigs, and always recheck mesh and fasteners after installation.
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