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Yukon's master overhaul kits are the most comprehensive and complete kits on the market. Included in this kit are carrier bearings and races, Thread locking compound, ring gear bolts, complete shim kit, pinion nut, pinion seal, crush sleeve, marking compound with brush, oil baffles and slingers, pinion bearings and races, and gasket.





Does not work on positraction/limited slip differentials. Does not work on 28 spline applications. Usa standard gear standard spider gear set for Ford 8. 1985 & older 31 spline applications have a 3/4" cross pin shaft and require a new carrier case.
Again, we strongly urge you to first open up your differential and count the splines on your carrier to ensure proper fitment. Technical note 3: aftermarket 31 spline carrier cases and upgraded 31 spline axle shafts are available for many of the stock 28 spline applications. Please check your spline count before ordering. 8", 31 spline, open differential.

Made to last: forged 4320 High Tensile Strength Steel Internals. Assembled in the usa: proudly Assembled and Quality Tested in the USA in our Everett, Washington Facility.
Technical notes: the use of synthetic Oil is Allowed but may Result in Aggressive or Noisy Operation, Therefore we Recommend non-Synthetic Oil. Fully rebuildable: when age or high horsepower wears out the clutch packs, providing years of durability, they are fully replaceable and the unit is fully rebuildable, life and service.

1. USA Standard Gear
#ad
USA Standard Gear ZK F9.75-B Master Overhaul Kit for Ford 9.75 Differential
#adUSA Standard Gear #ad - Usa standard gear manufactures products that are engineered to surpass and exceed OEM specifications and eliminate points of failure through quality engineering, manufacturing, and quality control practices. Included are carrier bearings and races, ring gear bolts, crush sleeve if applicable, complete shim kit, pinion bearings and races, pinion seal, pinion nut, oil baffles and slingers if applicable.More information #ad
Usa standard master Overhaul kits let you finish your install with confidence. This kit uses Koyo bearings and races.Brand | USA Standard Gear #ad |
Manufacturer | USA Standard Gear #ad |
Height | 3 Inches |
Length | 12 Inches |
Weight | 7.9 Pounds |
Width | 13 Inches |
Part Number | ZK F9.75-B |
Model | ZK F9.75-B |
Warranty | 1 year warranty against Manufacturer defects |
More information #ad
2. Yukon Gear
#ad
Yukon Gear & Axle YK F8.8-A Master Overhaul Kit for Ford 8.8 Differential
#adYukon Gear #ad - This kit uses timken bearings and races along with high quality seals and small parts. Yukon master overhaul kits give you all the high quality parts you need to start and finish every differential job.Yukon's master overhaul kits are the most comprehensive and complete kits on the market. Included in this kit are carrier bearings and races, Thread locking compound, ring gear bolts, complete shim kit, pinion nut, pinion seal, crush sleeve, marking compound with brush, oil baffles and slingers, pinion bearings and races, and gasket.
More information #ad
Yukon offers more tailor-made kits than any other manufacturer in the industry to meet your specific installation needs.Brand | Yukon Gear #ad |
Manufacturer | Yukon Gear #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 6.5 Pounds |
Width | 0 Inches |
Part Number | YK F8.8-A |
Model | YK F8.8-A |
Warranty | 1 year warranty against Manufacturer defects |
More information #ad
3. USA Standard Gear
#ad
USA Standard Gear ZK F8.8 Ford 8.8" Diff Master Overhaul Kit
#adUSA Standard Gear #ad - Included are carrier bearings and races, pinion seal, thread locker, pinion nut, ring gear bolts, pinion bearings and races, complete shim kit, crush sleeve, marking compound with brush and gasket.More information #ad
This kit uses Koyo bearings and races. Usa standard master Overhaul kits let you finish your install with confidence. 8". Fits 2009 and down Ford 8.Brand | USA Standard Gear #ad |
Manufacturer | USA Standard Gear #ad |
Height | 3 Inches |
Length | 12 Inches |
Weight | 6 Pounds |
Width | 12 Inches |
Part Number | ZK F8.8 |
Model | ZK F8.8 |
More information #ad
4. Motive Gear
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Motive Gear R8.8RMKT Bearing Kit with Timken Bearings Ford 8.8" '81-'10
#adMotive Gear #ad - Item package weight : 2. 630 kilograms. Package dimension : 7. 061 centimeters L x 3048 centimeters W x 27. 94 centimeters H. Timken bearings and races along with quality small parts. Country of origin: CHINA.More information #ad
Brand | Motive Gear #ad |
Manufacturer | Motive Gear #ad |
Height | 1.75 Inches |
Length | 11 Inches |
Weight | 3.9 Pounds |
Width | 12 Inches |
Part Number | R8.8RMKT |
Model | R8.8RMKT |
Warranty | 1 Year or 50;000 Miles |
More information #ad
5. USA Standard Gear
#ad
USA Standard Gear ZBKF8.8 Bearing Kit for Ford 8.8 Differential
#adUSA Standard Gear #ad - This kit uses koyo bearings and races along with all high quality small parts. Contains all the correct parts you need to install your ring and pinion set. Includes Installation Guide.More information #ad
Brand | USA Standard Gear #ad |
Manufacturer | USA Standard Gear #ad |
Height | 4 Inches |
Length | 32 Inches |
Weight | 4.89 Pounds |
Width | 4 Inches |
Part Number | ZBKF8.8 |
Model | ZBKF8.8 |
Warranty | 1 year warranty against Manufacturer defects |
More information #ad
6. USA Standard Gear
#ad
USA Standard Gear Spartan Locker for ford 8.8 Differential 31 Spline SL F8.8-31
#adUSA Standard Gear #ad - Backed by 1 year. Heat treated and precision cut teeth. 8 differential with 31 spline axles. Easy, drop-in installation. Made from 9310 steel. Fits ford 8. The spartan locker's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap.More information #ad
Brand | USA Standard Gear #ad |
Manufacturer | Yukon Gear #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 7.24 Pounds |
Width | 0 Inches |
Part Number | SL F8.8-31 |
Model | SL F8.8-31 |
Warranty | 1 year warranty against Manufacturer defects |
More information #ad
7. USA Standard Gear
#ad
USA Standard Gear ZIKF8.8-S-31 Standard Open Differential Spider Gear Set for Ford 8.8", 31 Spline
#adUSA Standard Gear #ad - Technical note 1: there were both 28 and 31 spline factory options available for over lapping years. Please open your differential cover and confirm the factory carrier in your vehicle. 31 spline application.Does not work on positraction/limited slip differentials. Does not work on 28 spline applications. Usa standard gear standard spider gear set for Ford 8. 1985 & older 31 spline applications have a 3/4" cross pin shaft and require a new carrier case.
More information #ad
7/8" cross pin shaft. Technical note 2: there were limited slip and standard open carriers available for these applications, where ordering this part for the incorrect case would create fitment issues. Again, we strongly urge you to first open up your differential and count the splines on your carrier to ensure proper fitment. Technical note 3: aftermarket 31 spline carrier cases and upgraded 31 spline axle shafts are available for many of the stock 28 spline applications. Please check your spline count before ordering. 8", 31 spline, open differential.
Brand | USA Standard Gear #ad |
Manufacturer | USA Standard Gear #ad |
Height | 3 Inches |
Length | 12 Inches |
Weight | 5.2 Pounds |
Width | 12 Inches |
Part Number | ZIKF8.8-S-31 |
Model | ZIKF8.8-S-31 |
Warranty | 1 year warranty against Manufacturer defects |
More information #ad
8. Yukon Gear
#ad
Yukon Gear & Axle YDGF8.8-31-1 Duragrip Differential for Ford 8.8 with 31 Spline Axle, Grey
#adYukon Gear #ad - Best in class one year Warranty. Quality testing: all units are Fully Tested for Quality Assurance and Fitment in our Everett Washington Facility. Fitment: fits ford 8. 8" differentials with 31 axle splines, Found a Variety of Ford, Mercury, Lincoln and Mazda Vehicles.Made to last: forged 4320 High Tensile Strength Steel Internals. Assembled in the usa: proudly Assembled and Quality Tested in the USA in our Everett, Washington Facility.
More information #ad
Positraction style: Clutch Style Limited Slip Differential Posi. Traction: smooth yet aggressive, Giving you the Confidence and Performance You Need. Built tough: gears are Cut to Provide the Strongest Teeth Possible in any Terrain. Technical notes: the use of synthetic Oil is Allowed but may Result in Aggressive or Noisy Operation, Therefore we Recommend non-Synthetic Oil. Fully rebuildable: when age or high horsepower wears out the clutch packs, providing years of durability, they are fully replaceable and the unit is fully rebuildable, life and service.
Brand | Yukon Gear #ad |
Manufacturer | Yukon Gear #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 22 Pounds |
Width | 0 Inches |
Part Number | YDGF8.8-31-1 |
Model | YDGF8.8-31-1 |
Warranty | 1 year warranty against Manufacturer defects |
More information #ad
9. Yukon
#ad
16 Pieces, Yukon Gear & Axle YPKF9.75-PC Trac Loc Clutch Set for Ford 9.75″ Trac Loc positraction
#adYukon #ad - Engineered to Fit Specific Differential Applications. Higher quality Than OEM. Includes two side gears, cross pin shaft, two pinion gears, roll pin and spider gear thrust washers.More information #ad
Brand | Yukon #ad |
Manufacturer | Yukon Gear #ad |
Height | 0 Inches |
Length | 0 Inches |
Weight | 2.6 Pounds |
Width | 0 Inches |
Part Number | YPKF9.75-PC |
Model | YPKF9.75-PC |
Warranty | 1 year warranty against Manufacturer defects |
More information #ad