TAMIYA DT-03 Rear Lower Arm DT3056 Performance Upgrade by GPM  [DT3056]

DT-03 aluminium rear lower suspension link

This aluminium rear lower arm is an aftermarket replacement designed specifically for TAMIYA DT-03 chassis applications and carries part number DT3056. It replaces the original plastic lower arm with a metal alternative while keeping the stock mounting layout intact.

The part fits directly where DT-03 mounting locations remain unchanged. When installing, align the arm with the hub carrier and pivot pins, keep any original spacers, and tighten fasteners to the vehicle's recommended notes. The stiffer aluminium mounting gives a more consistent wheel position under load versus flexible plastic arms, aiding predictable handling.

Maintenance advice includes checking screw threads and mating surfaces for wear, cleaning contact faces prior to assembly, and using thread-lock on steel screws when appropriate. Verify there is no binding after the initial test run.

This aluminium rear lower arm provides a metal upgrade for DT-03 builders who want reduced flex at the rear mounting without changing factory fitment.