This is the optional Axial Front Differential Locker. **Will Not Fit The Yeti XL.** FEATURES Compatible with the Yeti Rock Racer and the EXO Terra buggy Replaces stock front differential gears Recommended for use with the AX30395 38T Bevel Gear Set AXIC0395, AX30401 36T Bevel Gear Set AXIC3401, AX30402, 43T Bevel Gear Set AXIC3402 INCLUDES Two Joints Diff Locker Six 2x8mm Socket Head Screws