TRAXXAS X-Maxx Rear Aluminium Gear Cover TXM038M by GPM  [TXM038M]

Aluminium rear gearbox shield

This aluminium rear gear cover is an aftermarket RC-scale accessory produced by GPM for the TRAXXAS 1/8 X-Maxx platform. It is supplied as a single piece and mounts over the rear gearbox to give a stiff protective panel around the spur gear and its housing. The component is intended for hobby use on electric 1/8 off-road rigs and is described here for maintenance, fitment checks, and tuning reference.

Fitment is straightforward for owners familiar with X-Maxx servicing: remove any existing plastic cover, seat the aluminium panel over the rear gearbox opening, then secure with the original fasteners. The cover acts as a structural guard and helps maintain consistent alignment of the rear spur gear during aggressive running, while also simplifying post-run inspections of mesh and bearings.

When adding this cover to a modified X-Maxx, check clearance around the motor pinion and spur gear, confirm there is no interference with suspension travel or driveshafts, and make sure reused screws sit flush to the aluminium surface. The cover is passive hardware and does not require changes to motor or ESC tuning.

For builders seeking a firmer shield for the rear gearbox, this aluminium cover offers a simple, service-friendly upgrade that protects the spur gear area without altering drive dynamics.