Yukon Gear Grizzly Locker / Ford 8.8in w/ 31 Splines

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. While it locks the differential for maximum traction, its patented design still allows for disengagement when you're navigating turns, making it more manageable on the street than some other locker types.

What sets the Grizzly Locker apart is its internal design, specifically the advanced gear tooth configuration. The inner clutch teeth feature a larger radius at the base, which Yukon Gear & Axle states offers up to 350% greater strength compared to back-cut designs. This robust construction helps resist breakage from shock-loading or catastrophic axle failure, giving you confidence when you're pushing your vehicle to its limits. The locker also uses 8620 internals for added strength and is assembled in the USA, reflecting a dedication to solid manufacturing.

This Grizzly Locker is specifically built for the Ford 8.8-inch axle with 31 spline axles. It fits a wide range of vehicles, including popular models like the Ford F-150, Ford Mustang, and Ford Bronco, among many others. When installing a locker like this, it's important to note that it typically requires a full differential rebuild, including new bearings and seals, so be prepared for that process.