Traction offroad is the name of this game and nothing adds more traction than differential lockers. Today we go through a how-to add a ‘welded’ rear locker to any rig that is technically ‘free’ if you are willing to put in the sweat equity. How to weld “Lock” Rear Differential Vitara TrackerAugust 2, 2019 in FABRICATION KNOWLEDGE / FABRICATION PROJECTS / Suzuki Vitara/Tracker 'PJ' by Paul