The GPM TRV057RS is a precision-engineered alloy rear upper arm designed to replace the stock unit on the Traxxas Revo 3.3. Manufactured for reliable fitment, the sandwich assembly and included fasteners provide a stable mounting point that reduces unwanted movement and supports consistent suspension geometry under load.
When fitting, ensure fasteners are seated correctly and retorque after the initial break-in runs. Schedule periodic inspections to confirm mounting integrity and to detect wear before it affects handling.