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Filthy Motorsports: Store > Ford 9.75"
Ford 9.75" Axle Parts, Gears, and Upgrades

Axle Models:

Ford 9.75" - 34 Spline 1997-1998
Ford 9.75" - 34 Spline 1999
Ford 9.75" - 34 Spline 2000-2007
Ford 9.75" - 34 Spline 2008-2010
Ford 9.75" - 34 Spline 2011+
Ford 9.75" - 35 Spline 2012+ (Raptor)

Axle Specifications:

Ring Gear Diameter: 9.750
Diff Cover Bolts: 12
Ring Gear Bolts: 12
Axle Spline Count: 34
Axle Shaft Style: Semi-Float
C-Clips: Yes
Pinion Support: No
Pinion Nut: 1-1/8"
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: 15 to 19 in-lbs
Pinion Preload Reused: 6 to 8 in-lbs
Ring Gear Backlash: .006" to .010"
Ring Gear Bolt Torque: 75 ft-lbs
Carrier Bearing Caps: 70 ft-lbs

Popular Applications:

Ford F-150 1997 to Current Rear
Ford F-150 Raptor
2010 to Current Rear
Ford Transit
2015 to Current Rear
Ford E Series Vans 1999 - 2014 Rear
Ford Expedition 1997 - 2014 Rear

Axle Images:




Due to various changes over the years, the following master install kits are required to install modern (2011+) Ford 9.75" gears into the following axle housings:

1997-1998 N/A
1999 N/A
2000-2007 YK F9.75-CNV-J
2008-2010 YK F9.75-CNV-K
2011+ YK F9.75-D

*Because all 9.75" axles look identical from the outside, the only way to determine the model year of a junkyard/sourced axle is to cross reference the pinion bearing and race part numbers.

Axle Details

The Ford 9.75" axle is a slightly smaller version of the Ford 10.25" / 10.5" Sterling axle and features a 9.75" diameter ring gear with 34 spline semi-floating axle shafts. While its bigger brother is found under full-size Ford trucks, the 9.75" model came as standard equipment under almost every modern Ford F-150 and '97 to '06 Expeditions. The ring and pinion gears changed in 2011, but will still fit older axles with the proper conversion bearings.
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ARB Air Locker
Ford 9.75" ARB Air Locker | 34 Spline
List Price: $1,218.99
Your Price: $1,059.99

ARB Air Lockers use compressed air to engage and disengage their internal locking mechanism at the simple flip of a switch. They feature components and gears that are 30% stronger than OEM differentials to offer superior strength, durability, and off-road traction.
Eaton Detroit TrueTrac
Ford 9.75" Eaton Detroit TrueTrac | 34 Spline
List Price: $671.60
Your Price: $584.07

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.
Detroit Locker
Ford 9.75" Detroit Locker | 34 Spline
List Price: $921.63
Your Price: $790.34

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.
Yukon Master Ring and Pinion Install Kit
Ford 9.75" Yukon Master Overhaul Kit | 2011 & Up Axles and Gears
List Price: $408.25
Your Price: $355.00

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up.
Yukon Master Ring and Pinion Install Kit
Ford 9.75" Yukon Master Overhaul Kit | 2008 - 2010 Axles w/ 2011+ Gears
List Price: $408.25
Your Price: $355.00

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up.
Yukon Master Ring and Pinion Install Kit
Ford 9.75" Yukon Master Overhaul Kit | 2000 - 2007 Axles w/ 2011+ Gears
List Price: $408.25
Your Price: $355.00

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up.
Yukon Master Ring and Pinion Install Kit
Ford 9.75" Yukon Master Overhaul Kit | 2008 - 2010 Axles w/ OEM Gears
List Price: $390.26
Your Price: $339.36

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up.
Yukon Master Ring and Pinion Install Kit
Ford 9.75" Yukon Master Overhaul Kit | 2000 - 2007 Axles w/ OEM Gears
List Price: $408.25
Your Price: $355.00

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up.
Yukon Master Ring and Pinion Install Kit
Ford 9.75" Yukon Master Overhaul Kit | 1999 Axles w/ OEM Gears
List Price: $434.60
Your Price: $377.91

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up.
Yukon Master Ring and Pinion Install Kit
Ford 9.75" Yukon Master Overhaul Kit | 1997 - 1998 Axles w/ OEM Gears
List Price: $380.77
Your Price: $331.10

Yukon master overhaul kits include everything you need to rebuild your differential, install new ring and pinion gears or add a differential locker. Every component is of the highest quality and engineered specifically for your application to ensure accurate set up.
Yukon Minor Ring and Pinion Install Kit
Ford 9.75" Yukon Minor Overhaul Kit | 1997 - 2010 Axles
List Price: $161.24
Your Price: $140.21

Yukon minor overhaul kits include all of the seals, shims, and small parts you need to install new ring and pinion gears or add a differential locker (using the existing bearings). Every part is of the highest quality and made specifically for each axle application.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 3.31 (2011 & Up)
List Price: $507.07
Your Price: $414.87

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 3.55 (2011 & Up)
List Price: $507.06
Your Price: $440.92

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 3.73 (2011 & Up)
List Price: $460.97
Your Price: $400.84

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 4.11 (2011 & Up)
List Price: $507.07
Your Price: $440.93

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 4.56 (2011 & Up)
List Price: $507.07
Your Price: $361.05

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 4.88 (2011 & Up)
List Price: $507.07
Your Price: $361.05

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 5.13 (2011 & Up)
List Price: $507.07
Your Price: $371.92

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 3.08 (1997 - 2010)
List Price: $494.98
Your Price: $430.42

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 3.31 (1997 - 2010)
List Price: $401.17
Your Price: $348.84

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
Yukon Gear and Axle Ring and Pinion Sets
Ford 9.75" Yukon Ring and Pinion Gears | 5.13 (1997 - 2010)
List Price: $370.15
Your Price: $321.87

Yukon ring and pinion gears are built for heavy duty applications like racing, towing, and rock crawling. They're machined from the finest materials using modern gear grinding technology to give each set superior strength and the smoothest and most precise finish.
   
 
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