The HALO locker for all X3 and defender, 2018+ Can Am Maverick Trail, Sport and all new 2021 Commander (Not compatible with smart lock models). Utilizes a push button actuated, electronically shifted pin style locker. The X3 and Defender locker both use a 4 pin design for maximum strength and efficiency. The kit also includes a half billet case, a billet motor mount, a chromoly rockwell hardened internal locking gear, and 4140 chromoly components. You will also receive 2 hardened steel shims to shim your spider gears properly inside the differential. This kit is complete, no other components needed to be installed. Note 1: If you have the Can-Am X3 with 64″ track width you must modify the A arm by moving the crossbar 4 inches outboard from stock position. Note 2: Customers have reported fitment/clearance issues with use of Rhino brand axles. We offer a 1 year limited warranty on any do-it-yourself Halo products and kits. This kit is complete, no other components needed to be installed. VEHICLE FITMENT Can Am Commander (2021+) Can Am Defender Can Am Maverick Sport Can Am Maverick Trail Can Am Maverick X3