Eaton Detroit Locker Differential 31 Spline 4.56+ Ratio — Fits 8.8in Rear Axles

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eaton

Eaton engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eaton lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Eaton Detroit Locker for 8.8-inch Axles

When traction is the difference between winning and losing, the Eaton Detroit Locker is the ultimate solution for your 8.8-inch rear end. This 100% automatic locking differential is engineered to keep both wheels driving, regardless of the terrain or traction conditions. Its unique, bullet-proof design ensures that you never have to worry about a single wheel spinning while the other remains stationary.

Key Performance Features

  • 100% Automatic Locking: Instant engagement when needed
  • 31-Spline Compatibility: Designed for high-strength axle shafts
  • Ratio Support: Optimized for 4.56, 4.88, and 5.13 gear ratios
  • Extreme Durability: Built to withstand high torque and heavy loads
  • Versatility: Excellent for both street and off-road applications

This unit is specifically designed for the popular 8.8-inch axle platform, making it a perfect upgrade for a variety of Ford and Mercury vehicles, including the Bronco, F-150, and Mustang. The Detroit Locker is maintenance-free and requires no special additives or complex engagement procedures. It provides the strength needed for drag racing, rock crawling, and heavy-duty towing. With its proven track record in professional racing and off-road competition, this locker is the definitive choice for enthusiasts who demand the best. For high-quality drivetrain upgrades and professional-grade differentials, trust the experts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1986-1994 Ford Aerostar XL
1986-1997 Ford Aerostar Base
1986-1997 Ford Aerostar XLT
1988-1994 Ford Aerostar Eddie Bauer
1989-1994 Ford Aerostar XL Plus
1989-1997 Ford Aerostar XLT Plus
1991-1994 Ford Aerostar XL Sport
1991-1997 Ford Aerostar XLT Sport
1994-1995 Ford Aspire SE
1994-1997 Ford Aspire Base
1983 Ford Bronco XLT Lariat
1983 Ford Bronco XLS
1983-1993 Ford Bronco Custom
1984-1992 Ford Bronco XLT
1985-1996 Ford Bronco Eddie Bauer
1990-1996 Ford Bronco XL
1992 Ford Bronco XLT Nite
1993 Ford Bronco XLT Lariat
1994-1996 Ford Bronco XLT
1995-1996 Ford Bronco XLT Sport
1984-1985 Ford Bronco II XLS
1984-1986 Ford Bronco II Base
1984-1990 Ford Bronco II Eddie Bauer
1984-1990 Ford Bronco II XLT
1987-1990 Ford Bronco II XL
1988-1990 Ford Bronco II XL Sport
1989-1990 Ford Bronco II XLT Plus
2013-2015 Ford C-Max Energi SEL
2013-2015 Ford C-Max Hybrid SE
2013-2015 Ford C-Max Hybrid SEL
1995 Ford Contour GL Sport
1995 Ford Contour LX Sport
1995-1998 Ford Contour GL
1995-2000 Ford Contour LX
1995-2000 Ford Contour SE
1996-1997 Ford Contour Sport
1997-1998 Ford Contour Base
1998-2000 Ford Contour SVT
1987-1991 Ford Country Squire Base
1987-1991 Ford Country Squire LX
1992 Ford Crown Victoria Touring Sedan
1992-2003 Ford Crown Victoria S
1992-2008 Ford Crown Victoria Base
1992-2011 Ford Crown Victoria LX
1993-2011 Ford Crown Victoria Police Interceptor
2002-2003 Ford Crown Victoria LWB
2004-2006 Ford Crown Victoria LX Sport
2005 Ford Crown Victoria S
2005 Ford Crown Victoria Special Edition
2005-2009 Ford Crown Victoria LWB
2006-2009 Ford Crown Victoria Fleet
2010-2011 Ford Crown Victoria Base
1983 Ford E-100 Econoline XL
1983 Ford E-100 Econoline Custom
1983 Ford E-100 Econoline Club Wagon Custom
1983 Ford E-100 Econoline Club Wagon XL
2003-2011 Ford E-150 Base
2006-2007 Ford E-150 Chateau
2006-2011 Ford E-150 XL
2006-2011 Ford E-150 XLT

…and 315 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eaton

Eaton engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eaton lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Eaton Detroit Locker for 8.8-inch Axles

When traction is the difference between winning and losing, the Eaton Detroit Locker is the ultimate solution for your 8.8-inch rear end. This 100% automatic locking differential is engineered to keep both wheels driving, regardless of the terrain or traction conditions. Its unique, bullet-proof design ensures that you never have to worry about a single wheel spinning while the other remains stationary.

Key Performance Features

  • 100% Automatic Locking: Instant engagement when needed
  • 31-Spline Compatibility: Designed for high-strength axle shafts
  • Ratio Support: Optimized for 4.56, 4.88, and 5.13 gear ratios
  • Extreme Durability: Built to withstand high torque and heavy loads
  • Versatility: Excellent for both street and off-road applications

This unit is specifically designed for the popular 8.8-inch axle platform, making it a perfect upgrade for a variety of Ford and Mercury vehicles, including the Bronco, F-150, and Mustang. The Detroit Locker is maintenance-free and requires no special additives or complex engagement procedures. It provides the strength needed for drag racing, rock crawling, and heavy-duty towing. With its proven track record in professional racing and off-road competition, this locker is the definitive choice for enthusiasts who demand the best. For high-quality drivetrain upgrades and professional-grade differentials, trust the experts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1986-1994 Ford Aerostar XL
1986-1997 Ford Aerostar Base
1986-1997 Ford Aerostar XLT
1988-1994 Ford Aerostar Eddie Bauer
1989-1994 Ford Aerostar XL Plus
1989-1997 Ford Aerostar XLT Plus
1991-1994 Ford Aerostar XL Sport
1991-1997 Ford Aerostar XLT Sport
1994-1995 Ford Aspire SE
1994-1997 Ford Aspire Base
1983 Ford Bronco XLT Lariat
1983 Ford Bronco XLS
1983-1993 Ford Bronco Custom
1984-1992 Ford Bronco XLT
1985-1996 Ford Bronco Eddie Bauer
1990-1996 Ford Bronco XL
1992 Ford Bronco XLT Nite
1993 Ford Bronco XLT Lariat
1994-1996 Ford Bronco XLT
1995-1996 Ford Bronco XLT Sport
1984-1985 Ford Bronco II XLS
1984-1986 Ford Bronco II Base
1984-1990 Ford Bronco II Eddie Bauer
1984-1990 Ford Bronco II XLT
1987-1990 Ford Bronco II XL
1988-1990 Ford Bronco II XL Sport
1989-1990 Ford Bronco II XLT Plus
2013-2015 Ford C-Max Energi SEL
2013-2015 Ford C-Max Hybrid SE
2013-2015 Ford C-Max Hybrid SEL
1995 Ford Contour GL Sport
1995 Ford Contour LX Sport
1995-1998 Ford Contour GL
1995-2000 Ford Contour LX
1995-2000 Ford Contour SE
1996-1997 Ford Contour Sport
1997-1998 Ford Contour Base
1998-2000 Ford Contour SVT
1987-1991 Ford Country Squire Base
1987-1991 Ford Country Squire LX
1992 Ford Crown Victoria Touring Sedan
1992-2003 Ford Crown Victoria S
1992-2008 Ford Crown Victoria Base
1992-2011 Ford Crown Victoria LX
1993-2011 Ford Crown Victoria Police Interceptor
2002-2003 Ford Crown Victoria LWB
2004-2006 Ford Crown Victoria LX Sport
2005 Ford Crown Victoria S
2005 Ford Crown Victoria Special Edition
2005-2009 Ford Crown Victoria LWB
2006-2009 Ford Crown Victoria Fleet
2010-2011 Ford Crown Victoria Base
1983 Ford E-100 Econoline XL
1983 Ford E-100 Econoline Custom
1983 Ford E-100 Econoline Club Wagon Custom
1983 Ford E-100 Econoline Club Wagon XL
2003-2011 Ford E-150 Base
2006-2007 Ford E-150 Chateau
2006-2011 Ford E-150 XL
2006-2011 Ford E-150 XLT

…and 315 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About Eaton

Eaton engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eaton lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Eaton Detroit Locker for 8.8-inch Axles

When traction is the difference between winning and losing, the Eaton Detroit Locker is the ultimate solution for your 8.8-inch rear end. This 100% automatic locking differential is engineered to keep both wheels driving, regardless of the terrain or traction conditions. Its unique, bullet-proof design ensures that you never have to worry about a single wheel spinning while the other remains stationary.

Key Performance Features

  • 100% Automatic Locking: Instant engagement when needed
  • 31-Spline Compatibility: Designed for high-strength axle shafts
  • Ratio Support: Optimized for 4.56, 4.88, and 5.13 gear ratios
  • Extreme Durability: Built to withstand high torque and heavy loads
  • Versatility: Excellent for both street and off-road applications

This unit is specifically designed for the popular 8.8-inch axle platform, making it a perfect upgrade for a variety of Ford and Mercury vehicles, including the Bronco, F-150, and Mustang. The Detroit Locker is maintenance-free and requires no special additives or complex engagement procedures. It provides the strength needed for drag racing, rock crawling, and heavy-duty towing. With its proven track record in professional racing and off-road competition, this locker is the definitive choice for enthusiasts who demand the best. For high-quality drivetrain upgrades and professional-grade differentials, trust the experts at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1986-1994 Ford Aerostar XL
1986-1997 Ford Aerostar Base
1986-1997 Ford Aerostar XLT
1988-1994 Ford Aerostar Eddie Bauer
1989-1994 Ford Aerostar XL Plus
1989-1997 Ford Aerostar XLT Plus
1991-1994 Ford Aerostar XL Sport
1991-1997 Ford Aerostar XLT Sport
1994-1995 Ford Aspire SE
1994-1997 Ford Aspire Base
1983 Ford Bronco XLT Lariat
1983 Ford Bronco XLS
1983-1993 Ford Bronco Custom
1984-1992 Ford Bronco XLT
1985-1996 Ford Bronco Eddie Bauer
1990-1996 Ford Bronco XL
1992 Ford Bronco XLT Nite
1993 Ford Bronco XLT Lariat
1994-1996 Ford Bronco XLT
1995-1996 Ford Bronco XLT Sport
1984-1985 Ford Bronco II XLS
1984-1986 Ford Bronco II Base
1984-1990 Ford Bronco II Eddie Bauer
1984-1990 Ford Bronco II XLT
1987-1990 Ford Bronco II XL
1988-1990 Ford Bronco II XL Sport
1989-1990 Ford Bronco II XLT Plus
2013-2015 Ford C-Max Energi SEL
2013-2015 Ford C-Max Hybrid SE
2013-2015 Ford C-Max Hybrid SEL
1995 Ford Contour GL Sport
1995 Ford Contour LX Sport
1995-1998 Ford Contour GL
1995-2000 Ford Contour LX
1995-2000 Ford Contour SE
1996-1997 Ford Contour Sport
1997-1998 Ford Contour Base
1998-2000 Ford Contour SVT
1987-1991 Ford Country Squire Base
1987-1991 Ford Country Squire LX
1992 Ford Crown Victoria Touring Sedan
1992-2003 Ford Crown Victoria S
1992-2008 Ford Crown Victoria Base
1992-2011 Ford Crown Victoria LX
1993-2011 Ford Crown Victoria Police Interceptor
2002-2003 Ford Crown Victoria LWB
2004-2006 Ford Crown Victoria LX Sport
2005 Ford Crown Victoria S
2005 Ford Crown Victoria Special Edition
2005-2009 Ford Crown Victoria LWB
2006-2009 Ford Crown Victoria Fleet
2010-2011 Ford Crown Victoria Base
1983 Ford E-100 Econoline XL
1983 Ford E-100 Econoline Custom
1983 Ford E-100 Econoline Club Wagon Custom
1983 Ford E-100 Econoline Club Wagon XL
2003-2011 Ford E-150 Base
2006-2007 Ford E-150 Chateau
2006-2011 Ford E-150 XL
2006-2011 Ford E-150 XLT

…and 315 additional fitments. Contact us to confirm yours.

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