Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance. The Yukon Grizzly Locker is a mechanical positive-locking differential that’s engineered for rock crawling, serious trail running, off-road racing, and drag racing. The unit provides 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly Locker is a patented design that features innovations that make it tougher than the competition. Its inner clutch teeth have a larger radius at the base, which offers up to 350% greater strength versus back-cut designs. The Grizzly Locker’s larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. It’s a serious piece of mechanical engineering for serious driving conditions.
- Fits Dana Spicer 44 with 30 spline axles
- 3.92 and up ratio only
- Patented internal design reduces common locker failures
- 8620 internals for added strength
- Assembled in the USA
This unit will not work with early tapered axle designs that used an axle spacer button. This unit is drilled for 7/16″ ring gear bolts. If using in an application with 3/8″ bolts, please purchase (10) YSPBLT-027 spacers.