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Ford F-150 Gears, Lockers, and Rebuild Kits
Ring and pinion gears, lockers, and overhaul kits for 1997 through current model year Ford F-150 trucks.



Ford F-150 Axle Parts

Gear Ratio Recommendations

Tire Size Highway OEM Towing
31" to 33" 3.55 3.55 3.73
34" to 36" 3.73 4.11 4.56
37" to 39" 4.56 4.88 5.13

Tools: Gear Ratio Calculator / Engine RPM Calculator
Locker Recommendations

Our favorite locker combination for the Ford F-150 is an Eaton TrueTrac in the rear and a selectable locker like the ARB Air Locker up front. If you're on a budget, then a single selectable rear locker like the ARB Air Locker will still get your where you need to go.

Ford F-150 (1997 - 2003)

The following gears, lockers and install kits are available for 1997 to 2003 Ford F-150 with Ford 8.8" 28-Spline IFS front axles and Ford 8.8" or 9.75" rear axles. Between 2001 and 2003, some heavy duty versions of the F-150 came equipped with larger Ford 10.25" and 10.5" rear axles.

Front Axle: Ford 8.8" IFS
Ford 8.8
28 Spline (IFS)
No Carrier Break
Reverse Rotation

Gears
3.31R
3.55R
3.73R
4.11R
4.56R
4.88R
5.13R 		Install Kits
Master (All)
Minor (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

Rear Axle: Ford 8.8"
(1997-2003)
Ford 8.8
31 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.27
3.31
3.55
3.73
4.11
4.30
4.56
4.88
5.13
5.71
Install Kits
Master (All)
Minor (All)
Lockers
OX Locker
ARB Air Locker
Eaton TrueTrac
Detroit Locker


Rear Axle: Ford 9.75"
(1997-1999)
Ford 9.75
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.31
Install Kits
Master 97-98
Master 1999
Minor (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

• 1997-1999 axles only fit 1997-2010 Ford 9.75" gears.


Rear Axle: Ford 9.75"
(2000-2003)
Ford 9.75
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.31
Install Kits
Master (OEM)
Minor (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

• 1997-2010 Ford 9.75" gears fit OEM bearings and seals.
Gears
3.31 §
3.55 §
3.73 §
4.11 §
4.56 §
4.88 §
5.13 §
Install Kits
Mstr. Conv. Kit §
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

§ 2011+ Ford 9.75" gears require master conversion kit.


*For F150 HD models with Ford 10.25" Semi-Float 7-Lug axle shafts, contact us.

© Copyright Filthy Motorsports, DrivetrainShop.com - Do Not Copy or Reproduce Without Written Permission.


Ford F-150 (2004 - 2008)

The following gears, lockers and install kits are available for 2004 to 2008 Ford F-150 with Ford 8.8" 28-Spline IFS front axles and Ford 8.8" or 9.75" rear axles. Some heavy duty versions of the F-150 came equipped with larger Ford 10.25" and 10.5" rear axles.

Front Axle: Ford 8.8" IFS
Ford 8.8
28 Spline (IFS)
No Carrier Break
Reverse Rotation

Gears
3.31R
3.55R
3.73R
4.11R
4.56R
4.88R
5.13R 		Install Kits
Master (All)
Minor (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

Rear Axle: Ford 8.8"
(2004-2008)
Ford 8.8
31 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.27
3.31
3.55
3.73
4.11
4.30
4.56
4.88
5.13
5.71
Install Kits
Master (All)
Minor (All)
Lockers
OX Locker
ARB Air Locker
Eaton TrueTrac
Detroit Locker


Rear Axle: Ford 9.75"
(2004-2007)
Ford 9.75
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.31
Install Kits
Master (OEM)
Minor (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

• 1997-2010 Ford 9.75" gears fit OEM bearings and seals.
Gears
3.31 §
3.55 §
3.73 §
4.11 §
4.56 §
4.88 §
5.13 §
Install Kits
Mstr. Conv. Kit §
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

§ 2011+ Ford 9.75" gears require master conversion kit.


Rear Axle: Ford 9.75"
(2008)
Ford 9.75
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.31
Install Kits
Master (OEM)
Minor (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

• 1997-2010 Ford 9.75" gears fit OEM bearings and seals.
Gears
3.31 §
3.55 §
3.73 §
4.11 §
4.56 §
4.88 §
5.13 §
Install Kits
Mstr. Conv. Kit §
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

§ 2011+ Ford 9.75" gears require master conversion kit.

*For F150 HD models with Ford 10.25" Semi-Float 7-Lug axle shafts, contact us.

© Copyright Filthy Motorsports, DrivetrainShop.com - Do Not Copy or Reproduce Without Written Permission.


Ford F-150 (2009 - 2014) / Ford Raptor (2010 - 2014)

The following gears, lockers and install kits are available for 2009 to 2014 Ford F-150 with Ford 8.8" 31 Spline IFS front axles and Ford 8.8" or 9.75" rear axles. Some heavy duty versions of the F-150 came equipped with larger Ford 10.25" and 10.5" rear axles.

Front Axle: Ford 8.8" IFS
Ford 8.8
31 Spline (IFS)
No Carrier Break
Reverse Rotation

Gears
3.31R
3.55R
3.73R
4.11R
4.56R
4.88R
5.13R 		Install Kits
Master (All)
Minor (All)
Lockers
ARB Air Locker
Detroit Locker

Rear Axle: Ford 8.8"
(2009-2013)
Ford 8.8
31 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.27
3.31
3.55
3.73
4.11
4.30
4.56
4.88
5.13
5.71
Install Kits
Mstr. (2010+)*
Mstr. (2009)*
Minor (All)


Lockers
OX Locker
ARB Air Locker
Eaton TrueTrac
Detroit Locker

* 2010 and newer F-150s use 3.544" inner pinion bearings.
* 2009 and older F-150s use 3.250" inner pinion bearings.


Rear Axle: Ford 9.75"
(2008-2010)
Ford 9.75
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.08
3.31
Install Kits
Master (OEM)
Minor (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

• 1997-2010 Ford 9.75" gears fit OEM bearings and seals.
Gears
3.31 §
3.55 §
3.73 §
4.11 §
4.56 §
4.88 §
5.13 §
Install Kits
Mstr. Conv. Kit §
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker

§ 2011+ Ford 9.75" gears require master conversion kit.


Rear Axle: Ford 9.75"
(2011-2014 F-150 / 2010-2011 Raptor)
Ford 9.75
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.31
3.55
3.73
4.11
4.56
4.88
5.13
Install Kits
Master (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker


Rear Axle: Ford 9.75"
(2012-2014 Raptor Only)
Ford 9.75
35 Spline
Standard Rotation
Raptor Only

Gears
3.31
3.55
3.73
4.11
4.56
4.88
5.13
Install Kits
Master (All)
Lockers

*For F150 HD models with Ford 10.25" Semi-Float 7-Lug axles shaft, contact us.

© Copyright Filthy Motorsports, DrivetrainShop.com - Do Not Copy or Reproduce Without Written Permission.


Ford F-150 (2015 - Current) / Ford Raptor (2017 - Current)

The following gears, lockers and install kits are available for 2015 and newer Ford F-150 with Ford 8.8" 31 Spline IFS front axles and the new Ford "Super" 8.8" or classic Ford 9.75" rear axles.

Front Axle: Ford 8.8" IFS
Ford 8.8
31 Spline (IFS)
No Carrier Break
Reverse Rotation

Gears
3.31R
3.55R
3.73R
4.11R
4.56R
4.88R
5.13R 		Install Kits
Master (All)
Minor (All)
Lockers
ARB Air Locker
Detroit Locker

Rear Axle: Ford 8.8"
(2015+)
Ford 8.8
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.55
3.73
4.11
4.56
4.88
Install Kits
Master (ALL)
Lockers

*Aftermarket lockers coming soon.


Rear Axle: Ford 9.75"
(2015+)
Ford 9.75
34 Spline C-Clip
No Carrier Break
Standard Rotation

Gears
3.31
3.55
3.73
4.11
4.56
4.88
5.13
Install Kits
Master (All)
Lockers
ARB Air Locker
Eaton TrueTrac
Detroit Locker


Rear Axle: Ford 9.75"
(2017+ Raptor Only)
Ford 9.75
35 Spline
Standard Rotation
Raptor Only

Gears
3.31
3.55
3.73
4.11
4.56
4.88
5.13
Install Kits
Master (All)
Lockers

© Copyright Filthy Motorsports, DrivetrainShop.com - Do Not Copy or Reproduce Without Written Permission.






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