Yukon Dana 80 Ring & Pinion Gear Set - 37-Spline
YUKYG D80-331
The Yukon Ring & Pinion Gear Set for Dana 80 Axles is engineered for heavy-duty applications where strength, load capacity, and long-term reliability are critical. Commonly used in diesel trucks, duallys, commercial vehicles, tow rigs, and heavy off-road builds, the Dana 80 axle is designed to handle high torque and sustained operating loads.
Re-gearing a Dana 80 can help restore performance after installing larger tires, improve low-speed pulling power, or optimize engine RPM for towing and hauling. Yukon ring and pinion gears are precision machined and heat treated for dependable performance under load, but proper installation is essential to establish correct pinion depth, backlash, bearing preload, and gear contact pattern.
Includes:
- (1) Ring Gear
- (1) Matching Pinion Gear
Note: Sold as a matched ring and pinion gear set. Installation kit, bearings, races, shims, seals, and carrier components are sold separately unless otherwise noted.
Specifications
| Specification | Details |
|---|---|
| Manufacturer | Yukon Gear & Axle |
| Product Type | Ring & Pinion Gear Set |
| Axle Application | Dana Spicer 80 |
| Axle Position | Rear |
| Ring Gear Diameter | 11.25" |
| Pinion Spline Count | 37 Spline |
| Ring Gear Bolt Count | 12 Bolts |
| Differential Cover Bolt Count | 10 Bolts |
| Gear Tooth Profile | Precision Machined |
| Heat Treatment | Heat Treated for Heavy-Load Strength |
| Quantity | Sold as a Matched Set |
Fitment
| Make | Model | Year Range | Axle Application |
|---|---|---|---|
| Chevrolet | C3500 | 1992–2000 | Dana 80 Rear Axle |
| Chevrolet | C3500HD | 1991–2002 | Dana 80 Rear Axle |
| Chevrolet | C4500 Kodiak | 2003–2009 | Dana 80 Rear Axle |
| Chevrolet | Express 3500 | 1996–2007 | Dana 80 Rear Axle |
| Chevrolet | G30 | 1992–1995 | Dana 80 Rear Axle |
| Chevrolet | K3500 | 1990–1998 | Dana 80 Rear Axle |
| Chevrolet | P30 | 1997–1999 | Dana 80 Rear Axle |
| Dodge | B3500 | 1995–1998 | Dana 80 Rear Axle |
| Dodge | Ram 2500 | 1994–2002 | Dana 80 Rear Axle |
| Dodge | Ram 2500 Van | 1999–2003 | Dana 80 Rear Axle |
| Dodge | Ram 3500 | 1994–2002 | Dana 80 Rear Axle |
| Ford | E-350 Econoline | 1988–1998 | Dana 80 Rear Axle |
| Ford | E-350 Econoline Club Wagon | 1999 | Dana 80 Rear Axle |
| Ford | E-350 Super Duty | 2000–2010 | Dana 80 Rear Axle |
| Ford | E-450 Econoline Super Duty | 2000–2002 | Dana 80 Rear Axle |
| Ford | E-450 Super Duty | 2003–2005 | Dana 80 Rear Axle |
| Ford | F-350 | 1988–1997 | Dana 80 Rear Axle |
| Ford | F-350 Super Duty | 1999–2015 | Dana 80 Rear Axle |
| Ford | F-450 Super Duty | 1999–2005 | Dana 80 Rear Axle |
| Ford | F-Super Duty | 1990–1997 | Dana 80 Rear Axle |
| GMC | C3500 | 1992–2000 | Dana 80 Rear Axle |
| GMC | C3500HD | 2001–2002 | Dana 80 Rear Axle |
| GMC | K3500 | 1992–2000 | Dana 80 Rear Axle |
| GMC | P3500 | 1997–1999 | Dana 80 Rear Axle |
Fitment Notes:
- Fits Dana Spicer 80 rear axle applications only.
- Not compatible with Dana 70 or Dana 110 axles.
- Vehicle fitment alone does not confirm axle compatibility.
- Verify axle model, gear ratio, carrier compatibility, pinion spline count, and bearing dimensions before ordering.
- A master overhaul kit is recommended during installation.
- Professional differential setup is strongly recommended.
FAQ
Why re-gear a Dana 80 axle?
Installing larger tires changes the effective final-drive ratio and can reduce acceleration, towing performance, and low-speed pulling power. Selecting a more appropriate gear ratio helps return the engine to a better operating range and improves drivetrain response under load.
Why is the Dana 80 used in heavy-duty vehicles?
The Dana 80 features a large 11.25" ring gear and heavy-duty internal components designed for high torque, towing, commercial hauling, and sustained load conditions. It is commonly found in diesel trucks, duallys, vans, and medium-duty applications.
Why is proper gear setup critical?
Pinion depth, bearing preload, backlash, and gear contact pattern must be set accurately. Incorrect setup can cause excessive noise, heat buildup, bearing wear, tooth damage, and premature ring and pinion failure.
Should bearings and seals be replaced during installation?
Yes. Installing a new ring and pinion with fresh bearings, races, seals, shims, and setup hardware helps establish correct preload and alignment while reducing the risk of old components compromising the new gear set.
Can this gear set be used for towing and hauling?
Yes. Dana 80 gears are designed for heavy-duty use, but the correct ratio should be selected based on tire size, transmission gearing, engine powerband, gross vehicle weight, and intended operating speed.