SKU: YG F8.8R-331R / UPC: 883584243564
Yukon Gear Ring and Pinion Gear Set: Ford 8.8" Reverse Rotation, 3.31 Ratio
The Yukon Gear YG F8.8R-331R ring and pinion gear set, crafted specifically for Ford 8.8-inch reverse rotation differentials in a precise 3.31 gear ratio. This high-performance setup restores and enhances drivetrain efficiency, handling increased power demands from engine modifications or larger tires with consistent torque delivery and reduced noise. Built from premium high-grade steel using advanced heat treatment and precision machining, it provides smoother gear meshing and extended service life compared to factory components, ensuring your Ford 4x4 performs reliably across highways, trails, and heavy loads. Backed by Yukon's Y.E.S. Plan for lifetime coverage as long as you own the vehicle, this gear set stands as the reliable solution for maintaining forward momentum without compromise.
What's Included in Your Purchase
- One (1) ring gear (8.80-inch diameter)
- One (1) pinion gear (28-spline count)
- Complete ring and pinion gear set only—no additional install kit, shims, bearings, seals, or fluids included
Key Specifications
- Part Number: YG F8.8R-331R
- UPC: 883584243564
- Gear Ratio: 3.31:1
- Ring Gear Diameter: 8.80 inches
- Pinion Spline Count: 28
- Ring Gear Bolts: 10
- Cover Bolts: 10
- Pinion Shaft Diameter: 1.625 inches
- Differential Type: Ford 8.8-inch reverse rotation (front IFS applications)
- Material: High-grade steel alloy
- Part Weight: 19.23 lbs
Vehicle Fitment
Compatible with select 4-wheel-drive Ford F-150 and Expedition models equipped with the 8.8-inch independent front suspension (IFS) differential requiring reverse rotation gears. Verify your vehicle's axle configuration for exact match.
|
Year Range |
Make |
Model |
Submodels/Trims |
Engine Sizes |
Notes |
|
1997-2003 |
Ford |
Expedition |
Eddie Bauer, XLT |
4.6L, 5.4L |
4WD |
|
2004 |
Ford |
Expedition |
Eddie Bauer, NBX, XLS, XLT, XLT Sport |
4.6L, 5.4L |
4WD |
|
2005 |
Ford |
Expedition |
Eddie Bauer, Limited, XLS, XLT |
5.4L |
4WD |
|
2006 |
Ford |
Expedition |
Eddie Bauer, King Ranch, Limited, XLS, XLT, XLT Sport |
5.4L |
4WD |
|
2007 |
Ford |
Expedition |
Eddie Bauer, EL Eddie Bauer, EL Limited, EL XLT, King Ranch, Limited, XLT |
5.4L |
4WD |
|
2008 |
Ford |
Expedition |
Eddie Bauer, EL Eddie Bauer, EL King Ranch, EL Limited, EL XLT, Funkmaster Flex Edition, King Ranch, Limited, XLT |
5.4L |
4WD |
|
2009-2010 |
Ford |
Expedition |
Eddie Bauer, EL Eddie Bauer, EL King Ranch, EL Limited, EL XLT, King Ranch, Limited, XLT |
5.4L |
4WD |
|
2011-2014 |
Ford |
Expedition |
EL King Ranch, EL Limited, EL XL, EL XLT, King Ranch, Limited, XL, XLT |
5.4L |
4WD |
|
1997-2000 |
Ford |
F-150 |
Base, Lariat, XL, XLT |
4.2L, 4.6L, 5.4L |
4WD |
|
2001-2003 |
Ford |
F-150 |
King Ranch, Lariat, XL, XLT |
4.2L, 4.6L, 5.4L |
4WD |
|
2004 |
Ford |
F-150 |
FX4, Lariat, STX, XL, XLT |
4.2L, 4.6L, 5.4L |
4WD |
|
2005-2014 |
Ford |
F-150 |
FX4, King Ranch, Lariat, STX, XL, XLT (and additional trims) |
4.2L, 4.6L, 5.4L |
4WD; confirm extended years for specific configurations |
Shipping Details
- Product Weight: 19.23 lbs
- Shipping Box Dimensions: 16.00 in (L) x 12.00 in (W) x 6.00 in (D)
This Yukon Gear set integrates seamlessly with OEM dimensions for straightforward installation, delivering the power recovery and traction you need for your Ford's front differential. Choose YG F8.8R-331R to keep your truck geared for the long haul.
Differentials & Components
Shop differentials and components at Black Ops Auto Works for premium differentials, differential covers, differential gears, locker differentials, limited-slip differentials, install kits, rebuild kits, bushings, seals, yokes, spider gears, and final drive components for cars, trucks, SUVs, and off-road builds. Whether you are upgrading for better traction, stronger power delivery, improved durability, or drivetrain reliability, this collection includes the parts needed for street, towing, racing, and off-road applications. Shop Differentials & Components by Category Browse drivetrain and axle upgrades across popular product categories, including: Differentials Differential covers Differential cover gaskets Differential rebuild kits Differential install kits Differential overhaul kits Differential seal kits Differential bushings Differential mounts Differential braces Differential housings Differential dropouts Differential spider gears Differential yokes Final drive gears Wh...
View Differentials & Components Products
Drivetrain
Shop drivetrain parts and accessories at Black Ops Auto Works for differentials, axles, driveshafts, clutch kits, flywheels, flexplates, shifters, transmission components, ring and pinion gears, differential braces, differential bushings, wheel hubs, wheel bearings, U-joints, valve bodies, transmission coolers, drivetrain mounts, and performance driveline upgrades. This collection is built for street cars, drag cars, track builds, trucks, Jeeps, SUVs, high-horsepower Mopar builds, imports, European performance vehicles, and off-road applications that need stronger power delivery, durability, and reliability. Use this Drivetrain collection to find the right upgrade by vehicle platform, drivetrain layout, transmission type, power level, and product category. Differentials and ring and pinion gears support traction and gearing changes, axles and driveshafts help transfer power, clutch kits and flywheels improve manual transmission performance, transmission coolers and valve bodies supp...
View Drivetrain Products
Final Drive Gears
Final drive gears determine the overall multiplication ratio between the engine and the driven wheels, with the ring and pinion gear set inside the differential carrier providing the final stage of ratio reduction that translates transmission output into the torque and speed delivered to the axle shafts. Changing the final drive ratio is one of the most effective ways to tailor a vehicle's character for a specific purpose, with numerically higher ratios improving acceleration and towing torque at the cost of higher RPM at cruising speeds, while numerically lower ratios reduce cruise RPM and improve fuel economy at the cost of off-the-line acceleration. Performance builders choose gear ratios based on the engine's power band, the transmission's gear spacing, tire diameter, and the primary intended use whether that is drag racing, road course, towing, or overland travel. This collection covers ring and pinion gear sets for domestic trucks, muscle cars, and import performance applicati...
View Final Drive Gears Products
Yukon Gear & Axle
Yukon Gear & Axle provides the highest quality aftermarket drivetrain parts in the industry. Yukon products are produced using superior materials and built to tolerances that exceed OE specifications. We do drivetrain right! Yukon manufactures high performance ring & pinions, positractions, lockers, axle upgrades, rebuild kits, hubs, driveshafts, diff covers, and more. Proven at the King of the Hammers and the granite crags and outcrops of Moab, Yukon products are built for abuse so you can gear up and wheel with confidence. At Yukon Gear & Axle we make it our Mission to build quality parts that exceed expectation. It’s that simple! Our in-house engineering group utilizes state-of-the-art software to design product that’s then manufactured in partnership by some of the world’s foremost leaders in OEM manufacturing. After rigorous testing and intense quality inspection, we’re proud to call it Yukon.
View Yukon Gear & Axle Products


