Yukon Grizzly Lockers offer full and positive traction for serious rock crawling. Yukon Grizzly Lockers work like a ratchet wrench, allowing one wheel to spin faster as needed for going around corners but does not allow either wheel to go slower than the drive speed.
The case and internals of a Grizzly Locker are made out of forged 8620 nickel-chromium-molybdenum tool steel for maximum strength. Grizzly Lockers also have large teeth to avoid breaking from shock-loading or a broken axle.
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