Yukon Zip locker for Dana 44, non-Rubicon JK, 30 spline

TYukon Zip locker for Dana 44, non-Rubicon JK, 30 spline The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. •Fits Jeep JK non-Rubicon rear •Forged case and 8620 internals for added strength •Works with a variety of air delivery systems •Assembled in the USA Technical Notes •This unit fits NON-Rubicon JK rear housings only. It will NOT work with JK Rubicon differentials. This unit is drilled for 1/2" ring gear bolts. Includes new carrier bearings.