Yukon Ford 8.8" Ring & Pinion Gear Set - Rev. Rotation, 30-Spline
YUKYG F8.8R-331R
The Yukon Ring & Pinion Gear Set – Ford 8.8" Reverse Rotation is engineered for applications requiring reverse rotation gear geometry, such as high-pinion setups and custom driveline configurations.
The Ford 8.8" platform is widely known for its strength, availability, and extensive aftermarket support, making it a go-to choice for swaps and custom applications. When paired with the correct reverse rotation setup, these gears provide dependable performance in demanding environments. As with any gear install, proper setup—including pinion depth, backlash, preload, and contact pattern—is essential to ensure durability, efficiency, and noise-free operation.
Includes:
- Ford 8.8" Reverse Rotation Ring gear
- Matching pinion gear
- Available Gear Ratio: 3.31, 3.55, 3.73, 4.11, 4.56, 4.88, & 5.13
Sold as a matched gear set
Installation kit, bearings, shims, seals, and carrier components sold separately unless noted.
Specifications
- Brand: Yukon Gear & Axle
- Product Type: Ring & pinion gear set
- Application: Ford 8.8" axle
- Rotation: Reverse rotation
- Available Gear Ratio: 3.31, 3.55, 3.73, 4.11, 4.56, 4.88, & 5.13
- Ring Gear Diameter: 8.80"
- Pinion Spline Count: 30-spline
- Ring Gear Bolt Count: 10-bolts
- Cover Bolt Count: 10-bolts
- Quantity: Sold as a matched set
Fitment
| Make | Model | Year Range |
|---|---|---|
| Ford | Expedition | 1997–2024 |
| Ford | F-150 | 1997–2024 |
| Ford | F-250 | 1997–1999 |
| Lincoln | Mark LT | 2006–2008 |
| Lincoln | Navigator | 1998–2014 |
- Ideal for street performance, towing, moderate tire upgrades, and axle rebuilds
- Verify axle tag, spline count, housing application, and current ratio before ordering.
Tech Insight
What does reverse rotation mean on a Ford 8.8 axle?
Reverse rotation gears are designed for front axle applications where the pinion enters the housing above the centerline of the ring gear. Reverse rotation gears are not interchangeable with standard rotation gear sets.
What vehicles commonly use a reverse rotation Ford 8.8 axle?
Reverse rotation Ford 8.8 gears are commonly found in Ford Bronco, Ford Ranger, Ford Explorer, and custom solid axle swap applications. Always verify your axle configuration before ordering.
Can I install reverse rotation gears in a standard Ford 8.8 axle?
No. Reverse rotation and standard rotation gear sets are designed differently and are not interchangeable. Installing the incorrect gear set can result in improper operation and gear failure.
Do I need a master install kit when replacing ring and pinion gears?
Yes. A complete overhaul kit includes bearings, races, shims, seals, crush sleeves, and setup components needed to properly install new gears and maximize gear life.
Why would I choose a deeper gear ratio?
Deeper gear ratios help restore lost power after increasing tire size and improve low-speed torque multiplication for off-road driving, towing, and crawling applications. The best ratio depends on tire size, transmission gearing, and intended vehicle use.
