Why We Make It Upgrade your Visco-Lok front differential and get true on-demand four-wheel drive for your Can-Am Defender with SuperATV™s actuating Pin Locker Front Differential. With a pin locker front diff upgrade, your diff will lock instantly for superior traction. It comes complete with everything you need to replace your OEM internals and get rolling. Switch to a GDP Pin Locker Differential and experience Gear Driven Performance on your machine! Think grip, not slip! The SuperATV Difference Our pin locker differential uses electronically actuated pins to lock your hubs. It drops right into your existing differential to make installation a breeze and¯it comes with everything you need to get going again. Our cast or billet aluminum lid makes this upgrade unbreakable. SuperATV™s Pin Locker Differential will give you the ability to ride hard over any obstacle”the must have upgrade for work or play. Visco-Lok vs SuperATV™s Pin Locker Differential Can-Am™s stock Visco-Lok differential is not a true on-demand differential. When push comes to shove, your wheels need to spin at least one full rotation before the clutch pack will engage and lock the Visco-Lok diff. By then, you™ve already lost your momentum and the diff can slip and unlock. With SuperATV™s Pin Locker Front Differential, you have the ability to lock your front differential with the flip of a switch. That means consistent, on-demand power to both front wheels through any obstacle for as long as you need it. Cast or Billet Aluminum Cap The pin locker housing cap is available with cast A380 aluminum alloy or billet 6061 aluminum alloy. Our billet caps are CNC machined right here in Madison, Indiana and give you increased strength and consistency over cast.