This aluminium alloy rear upper arm is a one-piece left-side replacement made for TRAXXAS Revo and Revo 3.3 models. The sandwich construction is fastened with screws and pins to secure bushings and connections, replacing the OEM plastic arm when you need higher rigidity and better wear characteristics.
The arm defines the rear suspension pick-up and influences camber and toe behaviour under load; as an aluminium part it alters chassis flex and driver feedback compared with the stock plastic component, so suspension adjustments may need rebalancing. The kit supplies the left arm together with the fastening screws and pins shown in the product title.
Installation guidance: fit using the included screws and pins, check alignment with the chassis and driveline, and verify there is no interference with shock mounts or drive shafts after fitting. Carry out routine inspections after installation.
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