Tamiya DT-03 Rear Lower Suspension Arm Upgrade - JR-DT301-LB by Jazrider  [JR-DT301-LB]

Aluminum rear lower arm for DT-03 chassis

This aluminum rear lower suspension arm fits the Tamiya DT-03 chassis and uses model number JR-DT301-LB. It is a direct-replacement hop-up part intended to increase component stiffness and repeatability in scale RC rear suspension assemblies while keeping factory geometry.

Design emphasis is on material choice and mounting compatibility: the arm is made from aluminum to resist deformation under load compared with stock plastic, and it mates with the DT-03 chassis mounting points and hardware. Use it when consistent camber response and improved durability are priorities during track sessions or backyard running.

Installation is straightforward for experienced builders: remove the stock rear lower arm, reuse original mounting pins and hardware where they fit, then install the JR-DT301-LB. Verify pivot clearance, torque fasteners to the chassis manufacturer's recommendations, and confirm suspension travel and wheel alignment after fitting.

Choose this arm when you need a more dimensionally stable rear lower link for DT-03 maintenance or incremental handling updates, and always re-check alignment after installation.