This Factory Pro aftermarket lower suspension arm is designed specifically for the ARC A11 chassis and provides a short-length rear lower arm option for RC-scale setups. It is sold as 1 pc and intended as a drop-in replacement for the rear lower suspension location to restore geometry after damage or to try a shorter arm for tuning changes.
The part is presented as an OEM-style replacement produced for ARC A11 users, so compatibility is limited to that platform only; confirm your chassis code before ordering. Installation is straightforward for experienced hobbyists: remove the rear lower arm retaining pins and link hardware, swap the arm, and reassemble while checking alignment and roll-center changes. As a tuning component, a shorter rear lower arm typically shifts roll characteristics and can affect rear-end grip and steering responsiveness, so test with cautious incremental changes.
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