Yukon Grizzly Locker for Dana 30, 27 spline, 3.73 & Up

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. Fits Dana Spicer 30 with 27 spline axles 3.73 and up ratio only Patented internal design reduces common locker failures 8620 internals for added strength Assembled in the USA 1 year warranty against Manufacturer defects Technical Notes: This unit is double drilled for both 3/8" & 7/16" ring gear bolts. Compatible with Differentials: Dana 30 Front, Crush Sleeve Design, Grand Cherokee Dana 30 Front, Crush Sleeve Design, TJ Wrangler Dana 30 Front, JK Non-Rubicon Dana 30 Front, Reverse Rotation Dana 30 Front, Standard Rotation Dana 30 Rear