Yukon Gear Grizzly Locker For Ford 9in w/ 31 Spline Axles / Fits Load Bolt Housing

Yukon Gear & Axle is known for building tough drivetrain components, and their Grizzly Locker is a prime example of that commitment. If you're looking to significantly improve traction for serious off-road adventures, rock crawling, or even drag racing, this mechanical locker is designed to handle extreme conditions. It works by providing 100% power to both rear wheels simultaneously, ensuring that neither tire spins out when you need grip the most. This unit is specifically built for Ford 9-inch rear ends that use 31-spline axles and feature a load bolt housing, fitting a wide range of classic Ford vehicles like the Bronco, F-100, and Mustang from various years.

What sets the Grizzly Locker apart is its robust internal design. It features a patented system with inner clutch teeth that have a larger radius at the base. This design offers up to 350% greater strength compared to other designs, making it much more resistant to breakage from shock loads or catastrophic axle failures. The gears and casing are made from durable 8620 internals, chosen for their strength and reliability under stress. This locker is assembled in the USA, reflecting a dedication to quality manufacturing.

When you install a Grizzly Locker, you're getting a serious piece of mechanical engineering that can handle demanding driving conditions. While it locks both wheels for maximum traction, it's designed to allow for disengagement when you're negotiating turns, making it more manageable on the street than some other types of lockers. This is a substantial upgrade for any Ford 9-inch rear end built for performance and off-road capability.