The SLA155613TLG kit pairs a low-profile aluminium adapter with hardened steel 32 pitch gears for compatibility with the TRAXXAS SLASH 4X4 (68086-21 version). Lowering the spur relative to the chassis mount helps reduce the effective centre of gravity, while the steel gears resist deformation under heavy loads.
Provided gear counts give the theoretical drive ratios listed here when used with common pinion sizes: 56T with 13T = 1:4.307, 56T with 14T = 1:4.000, 56T with 15T = 1:3.733, 56T with 16T = 1:3.500, 56T with 17T = 1:3.294, 56T with 18T = 1:3.111, 56T with 19T = 1:2.947, 56T with 20T = 1:2.800.
The aluminium adapter and steel spur/motor gear are intended to improve mesh stability compared with softer materials, making this set a practical choice for racers or club drivers tuning final drive for traction or speed balance.
Fitting notes: confirm pinion and spur alignment, set mesh with a full-thickness gear pattern, and ensure nothing fouls the chassis. Secure hardware with appropriate thread-lock and verify motor shaft engagement into the pinion adapter before powering up.
A direct-fit aftermarket option to give Slash 4x4 drivers a steel spur assembly combined with a low-CG aluminium adapter for more consistent drivetrain feel and tuning flexibility.
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