Yukon Gear & Axle YGLF8-31 Grizzly Locker for Ford 8in 31 Spline

The Yukon Grizzly Locker is a premium mechanical locking differential designed for street performance, off-road adventures, and drag racing applications. Engineered specifically for Ford 8-inch rear ends with 31 spline axles, this locker delivers 100% power to both tires for maximum traction when you need it most.

Key Features:

• Forged case construction with 8620 steel internals for exceptional strength and durability
• Patented design reduces common locker failures and extends service life
• Automatic disengagement during turns for improved street manners and reduced tire wear
• 100% power distribution to both wheels under acceleration
• Assembled in the USA with precision manufacturing
• Industry-leading warranty coverage up to $2,000 including collateral damage and labor

Unlike welded differentials or spools, the Grizzly Locker allows your vehicle to handle normally during everyday driving while providing instant lock-up when traction is needed. The mechanical design requires no air lines, electrical connections, or external activation—it automatically engages under power and releases when coasting through turns. This makes it an ideal choice for vehicles that see both street and off-road use, or for drag racers who need to drive their vehicles to and from the track.

The 8620 steel internals provide superior strength compared to cast designs, making this locker suitable for high-horsepower applications and aggressive driving conditions. Yukon's patented internal design distributes stress more evenly, reducing the risk of component failure that plagues conventional locker designs.