Yukon Gear Grizzly Locker / Dana 30 / 30 Spline / 3.73+

This Yukon Gear Grizzly Locker is a mechanical positive-locking differential designed for serious off-road use, rock crawling, trail running, and even drag racing. It's built to give you 100% power to both drive wheels simultaneously, ensuring you get maximum traction when you need it most, while still allowing for smoother turns on pavement. This unit fits Dana 30 axles that use 30-spline axles and are set up for 3.73 or numerically lower gear ratios. It's a robust piece of engineering that can handle demanding conditions.

What you get in this package is the Grizzly Locker itself, featuring a patented internal design that's built tough. The casing and gears are made from 8620 internals for added strength, and the internal clutch teeth have a larger radius at the base. This design offers up to 350% greater strength compared to other designs and helps resist breakage from shock-loading or catastrophic axle failure. It's assembled in the USA, reflecting a commitment to solid construction. This locker is a serious upgrade for vehicles like the Jeep Wrangler, Ford Bronco, or International Scout II, providing a notable improvement in off-road capability.

When installing this locker, remember it's designed for specific axle and gear ratio combinations, so double-check your vehicle's setup. The 3.73 and up gear ratio requirement is crucial for proper operation. This is a substantial mechanical upgrade that changes how your vehicle puts power to the ground, especially in low-traction situations.