Yukon Gear Grizzly Locker For GM & Chrysler 11.5in w/ 38 Spline Axles

This is the Yukon Gear Grizzly Locker, a mechanical locking differential designed for serious off-road use, rock crawling, and even drag racing. It fits GM and Chrysler 11.5-inch axles with 38 spline count. If you're pushing your truck or SUV hard off-road and need maximum traction, this locker ensures 100% of the engine's power goes to both rear wheels, even when one tire loses grip. It's built to handle extreme conditions and provides a significant boost in performance when you need it most.

What sets the Grizzly Locker apart is its robust internal design. It features a patented internal mechanism with 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 internals are made from 8620 steel for added strength, and the entire unit is assembled in the USA. While it locks both wheels for maximum traction, it still allows for some disengagement when negotiating turns, which is crucial for street driving and tighter trails.

This locker is a substantial upgrade for vehicles like the Chevrolet Silverado HD, GMC Sierra HD, and Dodge Ram trucks from the early 2000s through the mid-2010s. Installation involves opening up the rear differential, so it's a job that requires specialized tools and knowledge, or professional installation. It's a serious piece of equipment for those who demand the best in traction and durability for their heavy-duty applications.