Yukon Dana 44 Zip Locker, 30-spline, 3.73-down, 71-96 Ford Bronco SKU: YZLD44-3-30
Yukon Dana 44 Zip Locker, 30-spline, 3.73-down, 71-96 Ford Bronco
Product Overview:
Get ultimate control over your traction with the Yukon Zip Locker. This air-operated locker lets you switch from an open differential to full lockup with the push of a button, giving you on-demand traction whether you're on the street or hitting the trails. Built with tough 4320 Chrome Moly internals and backed by Yukon’s unbeatable warranty, the Zip Locker ensures you have the strength, durability, and peace of mind needed for any adventure. Ready to take your off-roading to the next level? The Yukon Zip Locker has you covered!
- Fits Dana 44 Differential Housing - 1971-96 Ford Bronco
- For 3.73-down Ring & Pinion Gear Ratios

Full description
Get ultimate control over your traction with the Yukon Zip Locker. This air-operated locker lets you switch from an open differential to full lockup with the push of a button, giving you on-demand traction whether you're on the street or hitting the trails. Built with tough 4320 Chrome Moly internals and backed by Yukon’s unbeatable warranty, the Zip Locker ensures you have the strength, durability, and peace of mind needed for any adventure. Ready to take your off-roading to the next level? The Yukon Zip Locker has you covered!
- Fits Dana 44 Differential Housing - 1971-96 Ford Bronco
- For 3.73-down Ring & Pinion Gear Ratios
Yukon Zip Locker – On-Demand Air-Operated Traction | Dana 44 Applications
Conquer any terrain with the Yukon Zip Locker, a selectable air locker designed for drivers who demand traction on their terms. With a flip of a switch, this air-operated unit shifts from an open differential to 100% lockup, delivering maximum grip when the trail turns brutal. Built with ultra-tough 4320 Chrome Moly internals, the Zip Locker brings elite strength and reliability to your Dana 44-equipped rig. It’s a game-changer for anyone serious about off-road control.
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Selectable On-Demand Traction: Air-operated design gives you the power to lock or unlock your differential at will
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4320 Chrome Moly Internals: Built with premium alloy steel for superior strength under load
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Narrow Case Design: Fits Dana 44 narrow housings—order (2) DS 42563 spacers for wide housing setups
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ABS Compatible: Designed to work with ABS-equipped axles
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Assembled in the USA: Precision-built for reliability and performance on and off the trail
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Industry-Leading Warranty from Yukon: Includes locker replacement, collateral damage, and labor—up to $2,000
Fitment: Dana 44 axle applications including:
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1971–96 Ford Bronco
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1953–79 Ford F100
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1975–96 Ford F150
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1959–90 Ford F250
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1979 Ford F350
Install Notes: Requires onboard air compressor (sold separately). Professional install recommended for best results
Take control of your traction with a Yukon Zip Locker - this air-operated locker is open when you want it, locked when you need it, all at the flip of a switch.