Eaton Detroit Truetrac Differential 31 Spline 1.32in Axle — Fits 1983-1996 Ford Bronco

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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.

Ultimate Traction for Ford 8.8in Axles

Unlock the full potential of your Ford vehicle with the Eaton Detroit Truetrac differential. Designed for the popular 8.8-inch axle platform, this 31-spline unit features a 1.32-inch axle shaft diameter, making it the perfect upgrade for Ford Bronco, F-150, and other classic Ford trucks. The Truetrac utilizes a unique helical-gear design that provides smooth, automatic limited-slip performance in both forward and reverse gears.

Engineered for Reliability

  • Seamless Power Transfer: Automatically biases torque to the wheel with the most traction, preventing wheel spin before it starts.
  • No Maintenance Required: Unlike clutch-style limited slips, the Truetrac has no friction discs to wear out or replace.
  • Quiet Operation: Delivers smooth, chatter-free performance, making it ideal for both street and trail use.
  • Robust Construction: Engineered to handle high torque loads and demanding driving conditions.

Whether you are restoring a classic Bronco or upgrading an F-150 for better off-road performance, this Truetrac differential is a game-changer. It provides the traction you need to conquer mud, snow, and loose terrain without the complexity of an air or electric locker. The unit is designed to fit seamlessly into the 8.8-inch front or reverse-rotation rear axles found in many Ford vehicles from the 80s and 90s. Experience the legendary reliability and performance that Eaton is known for. When you need the best in drivetrain technology to keep your wheels turning, 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 316 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.

Ultimate Traction for Ford 8.8in Axles

Unlock the full potential of your Ford vehicle with the Eaton Detroit Truetrac differential. Designed for the popular 8.8-inch axle platform, this 31-spline unit features a 1.32-inch axle shaft diameter, making it the perfect upgrade for Ford Bronco, F-150, and other classic Ford trucks. The Truetrac utilizes a unique helical-gear design that provides smooth, automatic limited-slip performance in both forward and reverse gears.

Engineered for Reliability

  • Seamless Power Transfer: Automatically biases torque to the wheel with the most traction, preventing wheel spin before it starts.
  • No Maintenance Required: Unlike clutch-style limited slips, the Truetrac has no friction discs to wear out or replace.
  • Quiet Operation: Delivers smooth, chatter-free performance, making it ideal for both street and trail use.
  • Robust Construction: Engineered to handle high torque loads and demanding driving conditions.

Whether you are restoring a classic Bronco or upgrading an F-150 for better off-road performance, this Truetrac differential is a game-changer. It provides the traction you need to conquer mud, snow, and loose terrain without the complexity of an air or electric locker. The unit is designed to fit seamlessly into the 8.8-inch front or reverse-rotation rear axles found in many Ford vehicles from the 80s and 90s. Experience the legendary reliability and performance that Eaton is known for. When you need the best in drivetrain technology to keep your wheels turning, 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 316 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.

Ultimate Traction for Ford 8.8in Axles

Unlock the full potential of your Ford vehicle with the Eaton Detroit Truetrac differential. Designed for the popular 8.8-inch axle platform, this 31-spline unit features a 1.32-inch axle shaft diameter, making it the perfect upgrade for Ford Bronco, F-150, and other classic Ford trucks. The Truetrac utilizes a unique helical-gear design that provides smooth, automatic limited-slip performance in both forward and reverse gears.

Engineered for Reliability

  • Seamless Power Transfer: Automatically biases torque to the wheel with the most traction, preventing wheel spin before it starts.
  • No Maintenance Required: Unlike clutch-style limited slips, the Truetrac has no friction discs to wear out or replace.
  • Quiet Operation: Delivers smooth, chatter-free performance, making it ideal for both street and trail use.
  • Robust Construction: Engineered to handle high torque loads and demanding driving conditions.

Whether you are restoring a classic Bronco or upgrading an F-150 for better off-road performance, this Truetrac differential is a game-changer. It provides the traction you need to conquer mud, snow, and loose terrain without the complexity of an air or electric locker. The unit is designed to fit seamlessly into the 8.8-inch front or reverse-rotation rear axles found in many Ford vehicles from the 80s and 90s. Experience the legendary reliability and performance that Eaton is known for. When you need the best in drivetrain technology to keep your wheels turning, 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 316 additional fitments. Contact us to confirm yours.

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