Traxxas E-REVO Rear Aluminium Upper and Lower Arm Set 4pc ER5657 by GPM  [ER5657]

E-REVO rear arms in aluminium

This four-piece aluminium rear upper and lower suspension arm set is offered as an aftermarket replacement for Traxxas platforms. The parts are intended to be fitted in place of factory plastic arms to change rear linkage stiffness and improve resistance to wear and impact.

Fitment advice: arms are cut to match common Traxxas rear hub and chassis rail mounting points. Check pivot pin clearance, confirm original fastener lengths and thread engagement, and trial-fit before final tightening. When replacing metal fasteners, use a suitable thread locker and verify the suspension moves freely through its full travel.

Setup notes: moving to aluminium rear arms alters flex and reduces progressive deflection under load, which affects rear toe and tracking during launches and cornering. Use these arms as part of a measured setup update with damper and anti-roll bar tuning rather than expecting a single-component performance jump.

If you want a more durable rear arm option on Traxxas E-REVO family cars, this 4pc aluminium kit provides a metal upgrade that can change suspension behaviour; always verify compatibility with your particular chassis before altering hardware.