TRAXXAS TRX4 Rear Gearbox Support Mounts 12pcs TRX4013C by GPM  [TRX4013C]

Rear gearbox support brackets for TRX4 Trail Crawler

The TRX4013C assembly is a 12pcs aluminium mounting kit produced for the TRAXXAS TRX4 Trail Crawler chassis, offered as a durable replacement or upgrade for the rear gearbox mounting locations. Constructed from 6061 T6 aluminum, the items provide a rigid junction between the rear gearbox and rear knuckle arms to keep alignment under crawl and trail loads.

The bracket pieces feature a C-clamp contact that grips the rear knuckle arms, easing alignment during installation and helping to secure the gearbox without relying on fragile plastic tabs. Intended for hobby-grade RC vehicles, the kit is sized to match TRX4 rear hardware points as a direct replacement item.

Hardware supplied with the kit is stainless steel and includes flathead and cap screws to complete the installation: 2.5x10 - 6pcs stainless steel flathead screws and 2.5x16 - 4pcs stainless steel cap screws. Use simple hand tools and a 2.5mm hex driver to torque the fasteners uniformly and check driveline alignment once fitted.

Practical advice: check suspension clearance and rear knuckle travel during trial fitting, and re-torque the fasteners after a short run to ensure the C-clamp surfaces have bedded in. These mounts are intended to provide a firmer anchoring point for setup and maintenance on the TRX4 Trail Crawler platform.