Yukon Gear Grizzly Locker For Dana 60 / 4.10 & Down / 30 Spline

This is the Yukon Gear Grizzly Locker, a mechanical locking differential designed for Dana 60 axles with 30 spline shafts and compatible with 4.10 and numerically lower gear ratios. If you're looking to significantly improve traction for serious off-roading, rock crawling, or even drag racing, this locker is built to handle extreme conditions. It ensures that both rear tires receive 100% of the available power, giving you the grip needed to overcome tough obstacles or launch hard off the line.

What sets the Grizzly Locker apart is its robust construction and patented internal design. It features 8620 internals for added strength and an advanced gear tooth design with a larger radius at the base. This unique feature offers up to 350% greater strength compared to other designs, making it highly resistant to breakage from shock loads or catastrophic axle failures. This well-built unit is assembled in the USA, reflecting a commitment to durability and performance for demanding applications. While it locks both wheels for maximum traction, it still allows for differential action when turning, making it more manageable on the street than some other locker types.

This locker fits a wide range of heavy-duty trucks and SUVs from the late 1960s through the 1990s, including popular models like the 1967-1972 Chevrolet C10 Pickup, 1971-1980 Dodge B300 Van, and 1981-1993 Dodge D250. Installation will require removing the differential cover, draining the gear oil, and carefully setting up the new locker with the correct gear mesh and backlash. It's a significant upgrade for any vehicle that needs dependable traction in challenging environments.