Tamiya DT-03 Steel #45 Differential Joint by GPM DT3041S  [DT3041S]

DT-03 Steel #45 Differential Joint

This aftermarket differential joint is a scale RC replacement part produced by GPM for Tamiya DT-03 chassis use. The item is listed as a steel #45 differential joint sold as 1pr intended for the DT-03 driveline where the output coupling connects the differential to the driveshafts.

Fitment and role: the joint is designed to replace the stock DT-03 differential output coupling, restoring mechanical linkage between the diff and half shafts. It serves a maintenance and light-upgrade role, improving wear resistance compared with typical plastic OEM couplings while preserving stock geometry and fitment on DT-03 components.

Installation notes: service the vehicle by removing the differential housing, confirm mating faces and any circlips or set screws used on the original part, transfer bearings or seals as required, and install the new joint in the same orientation. Verify free rotation of the differential and check driveshaft alignment before returning the model to service.

Tuning considerations: use this part when durability under regular club running or moderate bashing is required, and when you want a direct replacement that does not alter diff behavior. For full drivetrain upgrades consider inspecting related half shafts and outdrives for wear during replacement.