TRAXXAS TRX4 Trail Crawler Aluminum Front/Rear Gearbox Cover by GPM TRX4012A  [TRX4012A]

Aluminum gearbox covers for TRX4

This aluminum front and rear gearbox cover set is an RC-scale spare produced for the TRAXXAS TRX4 Trail Crawler platform, provided by GPM under model TRX4012A. The set is intended to protect the front and rear gearbox housings and to add structural support to the differential assembly without implying any real vehicle application.

The covers are machined from 6061 T6 aluminum to provide a balance of light weight and tensile strength, and the design includes an oil filler access point to ease differential maintenance. High machining accuracy helps maintain differential alignment for smoother drivetrain operation during slow-speed crawling and technical trail use.

Installation requires removing the factory gearbox cover, fitting the aluminum piece, and securing it using the supplied stainless steel cap head screws. The upgrade is primarily a protective and tuning-oriented hop-up intended to stabilise the differential and reinforce the gearbox against impacts common in trail crawling.

Use this GPM TRX4012A aluminum cover set to add protection and differential stability to a TRAXXAS TRX4 Trail Crawler, keeping maintenance access convenient with the integrated oil filler.