TRAXXAS TRX4 Precision Brass Axle Mounts TRX4089X by GPM  [TRX4089X]

Technical overview of brass axle mounts

The TRX4089X brass axle mount set is a precision replacement for TRAXXAS TRX4 Trail Crawler axle link and damper pickup points. Each brass mount offers several threaded locations to allow controlled changes in link height and damper angle while adding axle ballast for improved low-speed traction.

The kit contains four brass mounts plus stainless steel flat head screws and is intended to clamp to the axle housing without the need for axle modification. The multiple tapped holes let experienced builders tune effective link lengths and roll centre by relocating link and damper pickup points.

Install by positioning the mount on the axle tube, aligning link and damper pickup, then securing with the supplied screws through the selected threaded holes. This approach provides repeatable adjustment points for articulation, roll control, and weight distribution during setup and testing.

For precision tuning of link geometry and axle ballast on TRX4 crawlers, these brass mounts offer a reliable, repeatable upgrade without permanent axle modification.