HPI Savage 21 112mm Titanium Dog Bone Main Shaft TSAV1037DL by GPM  [TSAV1037DL]

Titanium main shaft dog bone 112mm

Supplied as one 112mm titanium dog bone, this aftermarket unit is designed for HPI Savage 21 main shaft applications and for RC drivetrain use only. It matches the Savage submodels listed in the compatibility box and replaces standard steel or alloy dog bones to provide corrosion resistance and straightforward installation.

Fitting advice: remove the rear driveline assembly following your chassis instructions, insert the dog bone into the outdrive and main cup, then fit any retaining pins or clips used on your vehicle. No changes to the main shaft are necessary for the stated compatible models. Confirm free rotation and correct centring when reassembling and before final torque.

Performance role: the titanium dog bone helps preserve drivetrain alignment during demanding use and can reduce bending that leads to poor gear engagement. Fit it as part of scheduled maintenance or when adjusting diff and outdrive geometry.