Traxxas 7750X Driveshaft, steel constant-velocity (heavy duty, shaft only, 160mm) (1) (replacing #7750 also requires #7751X, #7754X and #7768, #7768R, or #7768G)

This is the Traxxas steel constant-velocity driveshaft. This is for the X-Maxx steel constant-velocity driveshaft for 8s-spec heavy duty drivetrain. 6s truck upgrade also requires #7751X, #7754X, and #7768 or #7768R to complete installation.