HPI Savage 21 Titanium Dog Bone for Main Shaft by GPM TSAV1037D  [TSAV1037D]

Titanium dog bone for HPI Savage 21

This GPM aftermarket dog bone is made for use with the HPI Savage 21 platform and targets the main shaft drivetrain link. Fabricated from titanium alloy, the part aims to provide a stiffer, corrosion‑resistant connection between the gearbox and wheel hubs compared with standard steel or plated parts. The package supplies one pair suitable for direct replacement where the shaft interface and lengths match.

Installation notes: confirm whether your Savage 21 setup uses the S (76.6mm) or L (83mm) length before fitting, measure the installed centre‑to‑centre distance on the main shaft and inspect existing cups and cross‑pins for wear. Use correct retaining hardware and torque on hex screws to avoid binding, and verify free rotation through the suspension and wheel travel range after installation.

Tuning role: swapping to a titanium dog bone can reduce drivetrain flex and resist surface wear in high‑stress off‑road use, helping maintain more consistent power transfer under load. It is a component for chassis-level durability and drivetrain refinement rather than a standalone performance upgrade.

Use this GPM TSAV1037D dog bone when replacing worn drivetrain links or when a titanium option is preferred for longevity and reduced wear on main shaft interfaces; always verify length and fit before final assembly.