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Filthy Motorsports: Store > Ford 8.8"
Ford 8.8" Axle Parts, Gears, and Upgrades

Axle Specifications:

Ring Gear Diameter: 8.800
Diff Cover Bolts: 10
Ring Gear Bolts: 10
Axle Spline Count: 31 / 28 / 34
Axle Shaft Style: CV / Straight
C-Clips: Yes
Pinion Support: No
Pinion Nut: 1-1/16"
Pinion Crush Sleeve: Yes
Carrier Breaks: No
Dropout Carrier: No
Max Output Torque: 1,360 / 1,250 ft-lbs
Max Cont. Torque: 5,100 / 4,600 ft-lbs

Torque Specifications:

Pinion Preload New: 14 to 19 in-lbs
Pinion Preload Reused: 6 to 8 in-lbs
Ring Gear Backlash: .011" to .016" (5*)
.011" to .016" (2*)
Ring Gear Bolt Torque: 60 ft-lbs
Carrier Bearing Caps: 60 ft-lbs

Popular Applications:

Ford F-150 1983 - Current F / R
Ford Mustang 1985 - Current Rear
Ford Expedition 1997 - Current F / R
Ford Ranger 1990 - 2011 Rear
Ford Bronco 1983 - 1996 Rear
Ford Crown Victoria 1983 - 2011 Rear

Axle Images:



Axle Details

The Ford 8.8" axle was introduced in 1983 to replace the (more expensive to produce) Ford 9 Inch axle. Their 8.8" tall ring gears and 28 or 31 spline axle shafts, no available with 34 spline shafts in the 2015 and newer "Super" 8.8", make them a great choice for mid to full-size trucks and SUVs and is why Ford continues to use them in many of their vehicles. Ford 8.8" axles are available in front and rear applications in both solid axle and IFS/IRS configurations and can easily be identified by their diff covers which are square with very rounded edges and 10 cover bolts.

*Note: Older "5-Cut" face milled gears may have different set up specs than the newer "2-Cut" face hobbed gears.

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OX Locker images
Ford 8.8" OX Locker | 28 Spline (2.73 & Up)
Price: $999.00

OX Lockers have a unique cable shifted locking mechanism that makes them extremely tough, durable, reliable, and easy to use. A heavy duty differential cover is included and the mechanical or air operated shifters (sold separately) make for an easy installation in any vehicle. more info
OX Locker images
Ford 8.8" OX Locker | 31 Spline (2.73 & Up)
Price: $999.00

OX Lockers have a unique cable shifted locking mechanism that makes them extremely tough, durable, reliable, and easy to use. A heavy duty differential cover is included and the mechanical or air operated shifters (sold separately) make for an easy installation in any vehicle. more info
Eaton Detroit TrueTrac
Ford 8.8" Eaton TrueTrac | 31 Spline
Price $661.99

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement. more info
Eaton Detroit TrueTrac
Ford 8.8" Eaton TrueTrac | 28 Spline
Price $656.99

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement. more info
Eaton Detroit TrueTrac
Ford 8.8" IFS Eaton TrueTrac | Front 28 Spline
Price $710.99

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement. more info
Eaton Detroit TrueTrac
Ford 8.8" Eaton TrueTrac | 33 Spline
Price $866.99

Detroit Truetrac Lockers are maintenance free, fully mechanical, Torsen style limited slip differentials with helical gears instead of clutch packs (which wear out over time) to provide constant torque to both wheels while still allowing for smooth turns on pavement. more info
Detroit Locker
Ford 8.8" Detroit Locker | 28 Spline
Price $957.99

Detroit Lockers have a legendary reputation with off-roaders and feature a heavy duty, efficient, and effective design that offers 100% traction to both wheels while still allowing for wheel speed differentiation for easy turning on the street and other high-traction surfaces. more info
Detroit Locker
Ford 8.8" Detroit Locker | 31 Spline (1983 & Up)
Price $873.99

Detroit Lockers have a legendary reputation with off-roaders and feature a heavy duty, efficient, and effective design that offers 100% traction to both wheels while still allowing for wheel speed differentiation for easy turning on the street and other high-traction surfaces. more info
Detroit Locker
Ford 8.8" Detroit Locker | 31 Spline (1983-1986)
Price $798.65

Detroit Lockers have a legendary reputation with off-roaders and feature a heavy duty, efficient, and effective design that offers 100% traction to both wheels while still allowing for wheel speed differentiation for easy turning on the street and other high-traction surfaces. more info
RCV Axle Shafts
Ford 8.8" RCV 4340 Chromoly CV Shafts | Ford Raptor (2010 +)
Price: $2,839.95

RCV Performance Ultimate CV Axles feature a constant velocity joint with chromoly shafts and internal components to give you maximum strength and smooth torque transfer at angles up to 45 degrees. Backed by a no questions asked limited lifetime warranty, made in the USA. more info
   
 
Don't see the particular axle or drivetrain parts you need? We carry more products and brands than we can make available on this website so give us a call or send us an email and chances are we can get what you need at a great price.