TRAXXAS 1/10 Rustler VXL Aluminum Rear Knuckle Arms RUS4022 by GPM  [RUS4022]

Durable aluminum rear knuckle arms for Rustler VXL

The RUS4022 pair supplies two aluminum rear knuckle arms made for TRAXXAS 1/10 Rustler VXL setups as a long lasting replacement for the stock plastic pieces. Machined from 6061 T6 aluminum, they increase tensile strength while keeping weight moderate, and Delrin collars are fitted to tighten the hub interface and cut lateral play.

Precision bearing seats minimise the running gap so the rear wheel spins with more consistent rotation under load. Functionally these knuckles steady the upper and rear lower arm geometry and the axle connection, which helps preserve predictable rear track behaviour during acceleration and when cornering.

Fitting is a direct swap for stock rear knuckles on compatible Rustler VXL layouts; check bearing fit and collar seating during reassembly to keep alignment. Note that changing arm mass affects rotational inertia and handling feel slightly, so verify clearance and fastener torque after installation.

If you want a metal upgrade for the Rustler VXL rear hub, this set improves fit and durability while remaining straightforward to install.