TRAXXAS TRX4 Crossmember Reinforcement Set TRX4015R by GPM  [TRX4015R]

Aluminium crossmember reinforcement for TRX4

This aluminium crossmember set is intended as an aftermarket reinforcement for TRAXXAS TRX4 trail crawler chassis. It gives structural support to the suspension links and a firmer mounting face for dampers, helping to hold geometry in place during technical climbs.

Components are machined to match chassis interfaces and come with a slim 3D profile that minimises bulk while maintaining clearance near driveline and suspension parts. The kit contains the small stainless steel fasteners detailed in the original packing information, allowing direct replacement of compatible factory screws where applicable.

Fitting guidance: the crossmembers mount to the chassis at factory points and engage link mounts and shock towers; fit the supplied screws and confirm alignment before final torque. In tuning terms, the extra bracing boosts stiffness at the mounting locations, which reduces unwanted flex and makes damper response more consistent on trail obstacles.

A practical upgrade to stiffen TRX4 link and damper mounts for trail-focused builds seeking consistent performance without altering core suspension geometry.