Yukon Gear & Axle YGK137 Complete Re-Gear & Install Kit Dana 80 Rear / Dana 60 Reverse Front 4.88 Ratio

The Yukon Gear & Axle YGK137 is a complete re-gear and installation kit designed for F350 trucks equipped with a Dana 80 rear differential and a Dana 60 reverse-rotation (high-pinion) front differential, delivering a 4.88 gear ratio for both axles. This all-in-one package eliminates the hassle of sourcing individual components by bundling matched front and rear ring and pinion gear sets with the appropriate Yukon Master Overhaul Kits under a single part number.

What's Included:

• Front Dana 60 reverse-rotation ring & pinion gear set — 4.88 ratio
• Rear Dana 80 ring & pinion gear set — 4.88 ratio
• Front Yukon Master Overhaul Kit (bearings, races, seals, crush sleeve, pinion nut, shims, and hardware)
• Rear Yukon Master Overhaul Kit (bearings, races, seals, crush sleeve, pinion nut, shims, and hardware)

Yukon Gear Quality:

• State-of-the-art gear tooth geometry design for quiet, smooth operation
• Advanced heat-treating processes for maximum surface hardness and long-term durability
• Stringent quality testing to meet exacting finish and dimensional specifications
• Engineered to last longer and run cooler and quieter than competing aftermarket gears

Yukon Y.E.S. Plan: All Yukon gear set kits are backed by the Yukon Exclusive Security (Y.E.S.) Plan — a lifetime, comprehensive, no-questions-asked protection plan that covers your gear set for as long as you own your vehicle.

Whether you're correcting for larger tires, maximizing towing capacity, or building a serious off-road truck, the 4.88 ratio provides the low-end torque multiplication needed for heavy-duty applications. Pairing the right gears with the most complete installation hardware available, this kit saves time and ensures a correct, long-lasting setup.