A Traction-Lok limited slip differential was optional for the 8.8 inch differential in many applications, but appears to have been limited to 3.55 and 3.73 ring and pinions. The axles noteworthy weaknesses are its C clips securing the axle shafts to the differential and the plugs securing the axle tubes to the differential housing (in lieu of welding). Ford manufacturers and sells a C clip eliminator kit through their 'Ford Performance' parts division. The axles are manufactured at Ford's Sterling Axle Plant in Sterling Heights, MI. Unlike other axles produced at this plant (notably the 10.25" and 10.50" axles found in Ford F-250 and F-350 trucks), the axle is not typically referred to as a "Sterling 8.8" and is always referenced as the "Ford 8.8" by Ford Motor Company.
Ford 8.8" Axle Specs
Manufacturer: |
Ford Motor Company |
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Production Plant: |
Sterling Axle Plant, Sterling Heights, MI |
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Applications: |
Various Ford cars, trucks, & SUVs beginning the 1983 model year, including: • 1983 - 2012 Ford F-150 The 8.8" differential is still in production for various Ford vehicles |
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Full/Semi Float: |
Semi floating |
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Axle Type: |
IFS/IRS and solid axle configurations, front and rear applications |
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Ring Gear: |
8.8 in |
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Pinion: |
28 or 30 spline |
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Axle Shafts: |
28 spline w/ 1.29" dia axle shafts or 31 spline w/ 1.32" axle shafts depending on application |
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Fluid Type*: |
75W-140 synthetic gear oil (rear), 75W-90 synthetic gear oil (front) |
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Fluid Capacity**: |
Front: |
2.11 qts, 2.0L, 3.7 pints |
Rear: |
2.75 qts, 2.6L, 5.5 pints |
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Identification: |
The differential housing has a somewhat unique square shape with large radius rounded corners. 4 and 5 lug axle shafts were produced, the late 80's Ford Mustang being a notable 4 lug example. Differential cover has 10 bolts. |
*Recommended fluid type and fluid capacity may vary by model year and application - always refer to your vehicle's owner manual for specifications specific to your application.
**Always fill axle until fluid level reaches the bottom of the fill plug hole.