Yukon Gear Grizzly Locker For Dana 60 / 4.56+ / 40 Spline

If you're looking to maximize traction for serious off-road adventures, rock crawling, or even drag racing, the Yukon Gear Grizzly Locker is a serious upgrade for your Dana 60 axle. This mechanical locker engages automatically, sending 100% of the engine's power to both wheels simultaneously. This means you get the grip you need when you're facing challenging terrain or need maximum acceleration. It's designed to work with 4.56 and numerically lower gear ratios and 40-spline axles, fitting a wide range of heavy-duty trucks and SUVs like older Chevrolet C/K series pickups, Dodge D/W series trucks, and Ford F-250/F-350 models from various years.

What sets the Grizzly Locker apart is its robust construction and patented internal design. It features 8620 internal gears for added strength, and its unique internal clutch teeth have a larger radius at the base. This design offers significantly greater strength compared to other designs, helping to resist breakage from shock loads or catastrophic axle failures. This well-built locker is assembled in the USA, ensuring a high standard of manufacturing. While it locks both wheels for ultimate traction, it still allows for differential action during turns, making it more manageable on the street than some other types of lockers.

Installing a locker like the Grizzly is a significant drivetrain modification. It's crucial to ensure your axle housing and gears are in excellent condition before installation, as the locker will amplify any existing weaknesses. You'll also need to consider the proper gear oil and any specialized tools required for differential work. This is a component built for demanding conditions, offering a substantial improvement in off-road capability and performance when you need it most.