TRAXXAS Rustler VXL Alloy Rear Upper Arm RUS057 by GPM  [RUS057]

Durable alloy rear upper arm for Rustler VXL

This alloy rear upper arm is an aftermarket replacement produced by GPM and supplied as RUS057 for the TRAXXAS 1/10 Rustler VXL chassis. It is intended as a direct-fit rear upper link to renew or improve the rear suspension connection points and hold alignment under load.

Installation uses the standard Rustler VXL rear mount locations and typically reuses existing hardware and pivot points. During fit-up verify ball stud and pin placement and watch for interference with the shock towers or rear hub assembly.

In tuning terms the rear upper arm influences the roll center and rear toe when the suspension compresses and rebounds. Fitting a stiffer alloy arm cuts down on flex at the pickup, helping to keep rear geometry consistent during tight cornering or high-speed sections. Make measured adjustments to related links and shock settings to keep handling predictable.

A practical upgrade for racers and weekend bashes who want a tougher rear upper arm that preserves suspension geometry under load.