The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.
3.73 and down ratio only
8620 internals for added strength
Assembled in the USA
Fits Dana Spicer 44 with 30 spline axles
Patented internal design reduces common locker failures
Technical Notes: This unit is drilled for 7/16" ring gear bolts. If you are using it in an application which has 3/8" ring gear bolts, please purchase qty 10 of part number YSPBLT-027 to sleeve the ring gear bolts.