HPI Savage 21 Drive Dog Bone Titanium TSAV1037D by GPM  [TSAV1037D]

Titanium drive dog bone for Savage 21

This aftermarket dog bone is intended for HPI Savage 21 main-shaft drivetrains and provides the connection between the gearbox output and wheel hubs. Built from titanium alloy, it improves stiffness and resists corrosion compared with common steel alternatives. The set includes one pair for a direct swap when dimensions and cup fit are compatible.

Installation notes: check whether your Savage 21 assembly requires S (76.6mm) or L (83mm) length before fitting, measure the main shaft centre-to-centre distance, and inspect cups and cross-pins for any wear. Fit with the correct retaining hardware, apply appropriate torque to hex screws to avoid binding, and confirm free wheel rotation across suspension travel.

Tuning role: upgrading to titanium dog bones reduces drivetrain deflection and limits surface wear during heavy off-road use, helping to maintain consistent torque transfer. This item targets durability and drivetrain refinement rather than outright power gains.

Fit the GPM TSAV1037D when replacing tired drivetrain links or when you prefer titanium for longer life and reduced wear on main shaft interfaces; always confirm size and fit before installation.