The TORQ Locker is the most advanced, strongest, highest quality automatic locking differential on the planet, proven in the most extreme vehicles from hard-core Rock Crawling, racing the King of the Hammers, Rock Bouncing, Sand Dunes and Mud Drags. To back this all up, Torq-Masters Industries offers an unprecedented 4 year warranty on the TORQ Locker with no tire size, horsepower limits or loopholes, quadruple the warranty of any other automatic locker on the market. Torq-Masters Industries is committed to building the highest quality locking differentials possible. To be the best, we build with the best, TORQ Locker is 100 percent Made in the USA with 100 percent USA raw materials. Keep it Simple, no air-lines to leak, compressors to fail, cables to adjust or electrical gremlins, the TORQ Locker gives you piece of mind as a reliable, mechanical, automatic locker that can handle any terrain. The TORQ Locker design eliminates and integrates pesky locker components seen in all other automatic drop-in lockers. The spacers are gone and the dowel pins are now machined into the Cam Gears to form key-ways.