TRAXXAS SLASH 4X4 Low-CG Aluminium Adapter Set 56T Spur 20T Pinion SLA155620TLG by GPM  [SLA155620TLG]

Low centre aluminium gear adapter for Slash 4X4

This aluminium adapter set combines a low centre aluminium adapter with hardened steel 32-pitch gears, supplied as a 56T spur and a 20T motor pinion. It is intended as an aftermarket drop-in component for TRAXXAS SLASH 4X4 cars using the 68086-21 layout.

The adapter is aluminium while the spur and pinion are hardened steel, all using the 32 pitch tooth profile. Hardened steel gears aim to provide consistent tooth engagement under load, and the reduced adapter height keeps the gearset closer to the chassis centreline.

Gear ratio details: the supplied 56T spur combined with the included 20T pinion results in a 1:2.800 ratio. Other pinion choices on a 56T spur give these reference ratios: 13T=1:4.307, 14T=1:4.000, 15T=1:3.733, 16T=1:3.500, 17T=1:3.294, 18T=1:3.111, 19T=1:2.947.

Fitting guidance: the adapter matches 32 pitch teeth and the standard mounting configuration for the specified Slash 4X4 version. During installation check motor mesh and backlash, secure the pinion with the original fastening method, and verify spur alignment within the gearbox to avoid premature wear.

Tuning role: use different pinions on the 56T spur to tune acceleration versus top speed; the included 20T pinion is a mid-range option leaning toward top speed while keeping motor load reasonable for typical drive systems.

This GPM SLA155620TLG set supplies a low-CG aluminium adapter with hardened steel 32-pitch gears for TRAXXAS SLASH 4X4 using the 68086-21 version, useful for model builders seeking a lower drivetrain profile and standard 32-pitch compatibility.