Yukon Zip Air Locker - Dana 44, 4 series (3.92 - Up), 72-79 Ford Bronco

New Dana 44 Front End Yukon Zip Locker for 72-77 Classic Ford Broncos and 78-79 Full-Size Ford Broncos. Fits Ratios from 3:92 and numerically higher (4.10, 4.27, 4.56, 4.88, etc.)

The Yukon Zip Locker uses an air line running off a small compressor (sold separately) to engage the locking mechanism to provide 100% power to both tires.

The Yukon Zip Locker gives you the driveability of an open carrier with the ability to switch to 100% lockup for hardcore off-roading.