Eaton Detroit Truetrac 30-Spline 1.31in Axle Limited-Slip Differential — Fits 1970s-80s Dodge & Ford Front Dana 44

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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.

Precision Traction for Front Axles

Enhance the front-end performance of your classic Dodge or Ford truck with the Eaton Detroit Truetrac. Designed for 30-spline axles with a 1.31-inch diameter, this limited-slip differential is engineered for Dana 44 front axle applications requiring a 3.92 and up gear ratio. It provides the perfect balance of on-road handling and off-road capability.

Why Upgrade Your Front Differential?

  • Improved Steering Control: By distributing torque effectively, the Truetrac helps maintain steering authority in loose conditions.
  • Clutchless Design: Eliminates the common wear issues associated with traditional limited-slip units, ensuring long-term durability.
  • Seamless Engagement: Helical gears provide instant power transfer without the clunking or noise of mechanical lockers.
  • Trail-Ready Reliability: Built to handle the stresses of 4WD engagement, providing consistent traction where you need it most.

Whether you are restoring a classic Dodge B-series van or upgrading a Ford F-150 for off-road adventures, the Detroit Truetrac is an essential performance component. Its ability to automatically manage torque ensures that your front wheels are always contributing to forward motion, significantly improving your vehicle's capability in challenging environments. Enjoy the peace of mind that comes with a maintenance-free, high-performance differential that is built to last. Upgrade your drivetrain today with the Eaton Detroit Truetrac, available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2000 Chrysler Grand Voyager Base
2000 Chrysler Grand Voyager SE
1977-1980 Chrysler LeBaron Base
1977-1981 Chrysler LeBaron Medallion
1978 Chrysler LeBaron S
1979-1981 Chrysler LeBaron Salon
1980-1981 Chrysler LeBaron Special
1982-1988 Chrysler LeBaron Base
1983-1986 Chrysler LeBaron Mark Cross
1987-1988 Chrysler LeBaron Premium
1969-1972 Chrysler New Yorker Base
1972 Chrysler New Yorker Brougham
1988 Chrysler New Yorker Turbo
1969-1971 Chrysler Newport Base
1969-1974 Chrysler Newport Custom
1971-1972 Chrysler Newport Royal
1973-1974 Chrysler Newport Base
2001 Chrysler PT Cruiser Base
2001 Chrysler PT Cruiser Limited
2001 Chrysler PT Cruiser Touring
1969-1988 Chrysler Town & Country Base
1983-1986 Chrysler Town & Country Mark Cross
1990-1996 Chrysler Town & Country Base
1996-2001 Chrysler Town & Country LX
1996-2001 Chrysler Town & Country LXi
1997-1999 Chrysler Town & Country SX
1999-2001 Chrysler Town & Country Limited
2001 Chrysler Town & Country EX
2000 Chrysler Voyager SE
2000-2001 Chrysler Voyager Base
2001 Chrysler Voyager LX
1969-1970 Dodge A100 Base
1969-1970 Dodge A100 Sportsman
1969-1970 Dodge A100 Pickup Base
1969-1970 Dodge A100 Truck Sportsman
1969-1970 Dodge A100 Truck Base
1969-1970 Dodge A108 Van Base
1981-1984 Dodge Aries Custom
1981-1985 Dodge Aries Base
1981-1986 Dodge Aries SE
1985-1987 Dodge Aries LE
1988-1989 Dodge Aries America
1976-1977 Dodge Aspen Custom
1976-1977 Dodge Aspen Special Edition
1976-1980 Dodge Aspen Base
1975-1980 Dodge B100 Base
1971-1974 Dodge B100 Van Base
1971-1974 Dodge B100 Van Sportsman
1981-1994 Dodge B150 Base
1995-1998 Dodge B1500 Base
1975-1980 Dodge B200 Base
1971-1974 Dodge B200 Van Base
1971-1974 Dodge B200 Van Sportsman
1972-1974 Dodge B200 Van Maxi
1972-1974 Dodge B200 Van Maxi Wagon
1981-1994 Dodge B250 Base
1995-1998 Dodge B2500 Base
1975-1980 Dodge B300 Base
1971-1974 Dodge B300 Van Base
1971-1974 Dodge B300 Van Sportsman

…and 296 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.

Precision Traction for Front Axles

Enhance the front-end performance of your classic Dodge or Ford truck with the Eaton Detroit Truetrac. Designed for 30-spline axles with a 1.31-inch diameter, this limited-slip differential is engineered for Dana 44 front axle applications requiring a 3.92 and up gear ratio. It provides the perfect balance of on-road handling and off-road capability.

Why Upgrade Your Front Differential?

  • Improved Steering Control: By distributing torque effectively, the Truetrac helps maintain steering authority in loose conditions.
  • Clutchless Design: Eliminates the common wear issues associated with traditional limited-slip units, ensuring long-term durability.
  • Seamless Engagement: Helical gears provide instant power transfer without the clunking or noise of mechanical lockers.
  • Trail-Ready Reliability: Built to handle the stresses of 4WD engagement, providing consistent traction where you need it most.

Whether you are restoring a classic Dodge B-series van or upgrading a Ford F-150 for off-road adventures, the Detroit Truetrac is an essential performance component. Its ability to automatically manage torque ensures that your front wheels are always contributing to forward motion, significantly improving your vehicle's capability in challenging environments. Enjoy the peace of mind that comes with a maintenance-free, high-performance differential that is built to last. Upgrade your drivetrain today with the Eaton Detroit Truetrac, available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2000 Chrysler Grand Voyager Base
2000 Chrysler Grand Voyager SE
1977-1980 Chrysler LeBaron Base
1977-1981 Chrysler LeBaron Medallion
1978 Chrysler LeBaron S
1979-1981 Chrysler LeBaron Salon
1980-1981 Chrysler LeBaron Special
1982-1988 Chrysler LeBaron Base
1983-1986 Chrysler LeBaron Mark Cross
1987-1988 Chrysler LeBaron Premium
1969-1972 Chrysler New Yorker Base
1972 Chrysler New Yorker Brougham
1988 Chrysler New Yorker Turbo
1969-1971 Chrysler Newport Base
1969-1974 Chrysler Newport Custom
1971-1972 Chrysler Newport Royal
1973-1974 Chrysler Newport Base
2001 Chrysler PT Cruiser Base
2001 Chrysler PT Cruiser Limited
2001 Chrysler PT Cruiser Touring
1969-1988 Chrysler Town & Country Base
1983-1986 Chrysler Town & Country Mark Cross
1990-1996 Chrysler Town & Country Base
1996-2001 Chrysler Town & Country LX
1996-2001 Chrysler Town & Country LXi
1997-1999 Chrysler Town & Country SX
1999-2001 Chrysler Town & Country Limited
2001 Chrysler Town & Country EX
2000 Chrysler Voyager SE
2000-2001 Chrysler Voyager Base
2001 Chrysler Voyager LX
1969-1970 Dodge A100 Base
1969-1970 Dodge A100 Sportsman
1969-1970 Dodge A100 Pickup Base
1969-1970 Dodge A100 Truck Sportsman
1969-1970 Dodge A100 Truck Base
1969-1970 Dodge A108 Van Base
1981-1984 Dodge Aries Custom
1981-1985 Dodge Aries Base
1981-1986 Dodge Aries SE
1985-1987 Dodge Aries LE
1988-1989 Dodge Aries America
1976-1977 Dodge Aspen Custom
1976-1977 Dodge Aspen Special Edition
1976-1980 Dodge Aspen Base
1975-1980 Dodge B100 Base
1971-1974 Dodge B100 Van Base
1971-1974 Dodge B100 Van Sportsman
1981-1994 Dodge B150 Base
1995-1998 Dodge B1500 Base
1975-1980 Dodge B200 Base
1971-1974 Dodge B200 Van Base
1971-1974 Dodge B200 Van Sportsman
1972-1974 Dodge B200 Van Maxi
1972-1974 Dodge B200 Van Maxi Wagon
1981-1994 Dodge B250 Base
1995-1998 Dodge B2500 Base
1975-1980 Dodge B300 Base
1971-1974 Dodge B300 Van Base
1971-1974 Dodge B300 Van Sportsman

…and 296 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.

Precision Traction for Front Axles

Enhance the front-end performance of your classic Dodge or Ford truck with the Eaton Detroit Truetrac. Designed for 30-spline axles with a 1.31-inch diameter, this limited-slip differential is engineered for Dana 44 front axle applications requiring a 3.92 and up gear ratio. It provides the perfect balance of on-road handling and off-road capability.

Why Upgrade Your Front Differential?

  • Improved Steering Control: By distributing torque effectively, the Truetrac helps maintain steering authority in loose conditions.
  • Clutchless Design: Eliminates the common wear issues associated with traditional limited-slip units, ensuring long-term durability.
  • Seamless Engagement: Helical gears provide instant power transfer without the clunking or noise of mechanical lockers.
  • Trail-Ready Reliability: Built to handle the stresses of 4WD engagement, providing consistent traction where you need it most.

Whether you are restoring a classic Dodge B-series van or upgrading a Ford F-150 for off-road adventures, the Detroit Truetrac is an essential performance component. Its ability to automatically manage torque ensures that your front wheels are always contributing to forward motion, significantly improving your vehicle's capability in challenging environments. Enjoy the peace of mind that comes with a maintenance-free, high-performance differential that is built to last. Upgrade your drivetrain today with the Eaton Detroit Truetrac, available at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2000 Chrysler Grand Voyager Base
2000 Chrysler Grand Voyager SE
1977-1980 Chrysler LeBaron Base
1977-1981 Chrysler LeBaron Medallion
1978 Chrysler LeBaron S
1979-1981 Chrysler LeBaron Salon
1980-1981 Chrysler LeBaron Special
1982-1988 Chrysler LeBaron Base
1983-1986 Chrysler LeBaron Mark Cross
1987-1988 Chrysler LeBaron Premium
1969-1972 Chrysler New Yorker Base
1972 Chrysler New Yorker Brougham
1988 Chrysler New Yorker Turbo
1969-1971 Chrysler Newport Base
1969-1974 Chrysler Newport Custom
1971-1972 Chrysler Newport Royal
1973-1974 Chrysler Newport Base
2001 Chrysler PT Cruiser Base
2001 Chrysler PT Cruiser Limited
2001 Chrysler PT Cruiser Touring
1969-1988 Chrysler Town & Country Base
1983-1986 Chrysler Town & Country Mark Cross
1990-1996 Chrysler Town & Country Base
1996-2001 Chrysler Town & Country LX
1996-2001 Chrysler Town & Country LXi
1997-1999 Chrysler Town & Country SX
1999-2001 Chrysler Town & Country Limited
2001 Chrysler Town & Country EX
2000 Chrysler Voyager SE
2000-2001 Chrysler Voyager Base
2001 Chrysler Voyager LX
1969-1970 Dodge A100 Base
1969-1970 Dodge A100 Sportsman
1969-1970 Dodge A100 Pickup Base
1969-1970 Dodge A100 Truck Sportsman
1969-1970 Dodge A100 Truck Base
1969-1970 Dodge A108 Van Base
1981-1984 Dodge Aries Custom
1981-1985 Dodge Aries Base
1981-1986 Dodge Aries SE
1985-1987 Dodge Aries LE
1988-1989 Dodge Aries America
1976-1977 Dodge Aspen Custom
1976-1977 Dodge Aspen Special Edition
1976-1980 Dodge Aspen Base
1975-1980 Dodge B100 Base
1971-1974 Dodge B100 Van Base
1971-1974 Dodge B100 Van Sportsman
1981-1994 Dodge B150 Base
1995-1998 Dodge B1500 Base
1975-1980 Dodge B200 Base
1971-1974 Dodge B200 Van Base
1971-1974 Dodge B200 Van Sportsman
1972-1974 Dodge B200 Van Maxi
1972-1974 Dodge B200 Van Maxi Wagon
1981-1994 Dodge B250 Base
1995-1998 Dodge B2500 Base
1975-1980 Dodge B300 Base
1971-1974 Dodge B300 Van Base
1971-1974 Dodge B300 Van Sportsman

…and 296 additional fitments. Contact us to confirm yours.

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