Eaton ELocker4 27 Spline 3.73 Ratio Differential — Fits Dana 30 Axles

SKU: EAT19818-020
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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

Unmatched Off-Road Capability: Eaton ELocker4

Take control of your vehicle's traction with the Eaton ELocker4, the premier choice for selectable differential technology. Designed specifically for Dana 30 axles, this unit gives you the power to lock your differential instantly when the terrain gets tough. Perfect for rock crawling, mud bogging, or uneven trails, the ELocker4 ensures that both wheels receive equal torque, providing the grip you need to conquer any obstacle.

Engineered for Strength

  • Spline Count: 27 Spline
  • Gear Ratio: 3.73
  • Axle Compatibility: Dana 30
  • Technology: Electronic Selectable Locking
  • Durability: Net-forged gears for superior longevity

The Eaton ELocker4 is built to withstand the intense torque loads of off-road driving. Its electronic engagement system is highly reliable, allowing for seamless transitions between open and locked modes. This specific 3.73 ratio model is a perfect upgrade for enthusiasts running larger tires on their Ford Bronco, International Scout, or Jeep Cherokee. By upgrading your differential, you significantly reduce the risk of getting stuck and improve your vehicle's overall off-road capability. Experience the difference that professional-grade drivetrain components make on your next adventure. Find all your essential off-road upgrades at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1966-1971 Ford Bronco Base
1968-1969 Ford Bronco Roadster
1968-1971 Ford Bronco Wagon
1967-1970 International Scout Base
1971-1974 International Scout II Base
1975 International Scout II XLC
1976-1977 International Scout II Base
1976-1977 International Scout II Terra
1976-1977 International Scout II Traveler
1971-1983 Jeep CJ5 Base
1975-1983 Jeep CJ5 Renegade
1977-1980 Jeep CJ5 Golden Eagle
1980-1983 Jeep CJ5 Laredo
1982-1983 Jeep CJ5 Limited
1970-1975 Jeep CJ6 Base
1976-1986 Jeep CJ7 Base
1976-1986 Jeep CJ7 Renegade
1977-1979 Jeep CJ7 Golden Eagle
1980 Jeep CJ7 Golden Hawk
1980-1983 Jeep CJ7 Laredo
1982-1983 Jeep CJ7 Limited
1985-1986 Jeep CJ7 Laredo
2000-2001 Jeep Cherokee Classic
2000-2001 Jeep Cherokee Limited
2000-2001 Jeep Cherokee SE
2000-2001 Jeep Cherokee Sport
1986 Jeep Comanche Custom
1986 Jeep Comanche X
1986 Jeep Comanche XLS
1987-1988 Jeep Comanche Chief
1987-1988 Jeep Comanche Laredo
1987-1992 Jeep Comanche Base
1987-1992 Jeep Comanche Pioneer
1988-1992 Jeep Comanche Eliminator
1993 Jeep Grand Cherokee Base
1993-2004 Jeep Grand Cherokee Laredo
1993-2004 Jeep Grand Cherokee Limited
1994-1995 Jeep Grand Cherokee SE
1995 Jeep Grand Cherokee Orvis
1997 Jeep Grand Cherokee Orvis
1997-1998 Jeep Grand Cherokee TSi
1998 Jeep Grand Cherokee 5.9 Limited
2002 Jeep Grand Cherokee Sport
2002-2004 Jeep Grand Cherokee Overland
2004 Jeep Grand Cherokee Special Edition
1982-1983 Jeep Scrambler SL
1982-1984 Jeep Scrambler SR
1982-1985 Jeep Scrambler Base
1985 Jeep Scrambler Laredo
1985 Jeep Scrambler Renegade
1987-1988 Jeep Wrangler Sport
1987-1990 Jeep Wrangler Laredo
1987-1993 Jeep Wrangler Base
1988 Jeep Wrangler S
1988-1992 Jeep Wrangler Islander
1988-1995 Jeep Wrangler Sahara
1991-1994 Jeep Wrangler S
1991-1994 Jeep Wrangler Renegade
1994-1995 Jeep Wrangler SE
1995 Jeep Wrangler Rio Grande

…and 47 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

Unmatched Off-Road Capability: Eaton ELocker4

Take control of your vehicle's traction with the Eaton ELocker4, the premier choice for selectable differential technology. Designed specifically for Dana 30 axles, this unit gives you the power to lock your differential instantly when the terrain gets tough. Perfect for rock crawling, mud bogging, or uneven trails, the ELocker4 ensures that both wheels receive equal torque, providing the grip you need to conquer any obstacle.

Engineered for Strength

  • Spline Count: 27 Spline
  • Gear Ratio: 3.73
  • Axle Compatibility: Dana 30
  • Technology: Electronic Selectable Locking
  • Durability: Net-forged gears for superior longevity

The Eaton ELocker4 is built to withstand the intense torque loads of off-road driving. Its electronic engagement system is highly reliable, allowing for seamless transitions between open and locked modes. This specific 3.73 ratio model is a perfect upgrade for enthusiasts running larger tires on their Ford Bronco, International Scout, or Jeep Cherokee. By upgrading your differential, you significantly reduce the risk of getting stuck and improve your vehicle's overall off-road capability. Experience the difference that professional-grade drivetrain components make on your next adventure. Find all your essential off-road upgrades at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1966-1971 Ford Bronco Base
1968-1969 Ford Bronco Roadster
1968-1971 Ford Bronco Wagon
1967-1970 International Scout Base
1971-1974 International Scout II Base
1975 International Scout II XLC
1976-1977 International Scout II Base
1976-1977 International Scout II Terra
1976-1977 International Scout II Traveler
1971-1983 Jeep CJ5 Base
1975-1983 Jeep CJ5 Renegade
1977-1980 Jeep CJ5 Golden Eagle
1980-1983 Jeep CJ5 Laredo
1982-1983 Jeep CJ5 Limited
1970-1975 Jeep CJ6 Base
1976-1986 Jeep CJ7 Base
1976-1986 Jeep CJ7 Renegade
1977-1979 Jeep CJ7 Golden Eagle
1980 Jeep CJ7 Golden Hawk
1980-1983 Jeep CJ7 Laredo
1982-1983 Jeep CJ7 Limited
1985-1986 Jeep CJ7 Laredo
2000-2001 Jeep Cherokee Classic
2000-2001 Jeep Cherokee Limited
2000-2001 Jeep Cherokee SE
2000-2001 Jeep Cherokee Sport
1986 Jeep Comanche Custom
1986 Jeep Comanche X
1986 Jeep Comanche XLS
1987-1988 Jeep Comanche Chief
1987-1988 Jeep Comanche Laredo
1987-1992 Jeep Comanche Base
1987-1992 Jeep Comanche Pioneer
1988-1992 Jeep Comanche Eliminator
1993 Jeep Grand Cherokee Base
1993-2004 Jeep Grand Cherokee Laredo
1993-2004 Jeep Grand Cherokee Limited
1994-1995 Jeep Grand Cherokee SE
1995 Jeep Grand Cherokee Orvis
1997 Jeep Grand Cherokee Orvis
1997-1998 Jeep Grand Cherokee TSi
1998 Jeep Grand Cherokee 5.9 Limited
2002 Jeep Grand Cherokee Sport
2002-2004 Jeep Grand Cherokee Overland
2004 Jeep Grand Cherokee Special Edition
1982-1983 Jeep Scrambler SL
1982-1984 Jeep Scrambler SR
1982-1985 Jeep Scrambler Base
1985 Jeep Scrambler Laredo
1985 Jeep Scrambler Renegade
1987-1988 Jeep Wrangler Sport
1987-1990 Jeep Wrangler Laredo
1987-1993 Jeep Wrangler Base
1988 Jeep Wrangler S
1988-1992 Jeep Wrangler Islander
1988-1995 Jeep Wrangler Sahara
1991-1994 Jeep Wrangler S
1991-1994 Jeep Wrangler Renegade
1994-1995 Jeep Wrangler SE
1995 Jeep Wrangler Rio Grande

…and 47 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

Unmatched Off-Road Capability: Eaton ELocker4

Take control of your vehicle's traction with the Eaton ELocker4, the premier choice for selectable differential technology. Designed specifically for Dana 30 axles, this unit gives you the power to lock your differential instantly when the terrain gets tough. Perfect for rock crawling, mud bogging, or uneven trails, the ELocker4 ensures that both wheels receive equal torque, providing the grip you need to conquer any obstacle.

Engineered for Strength

  • Spline Count: 27 Spline
  • Gear Ratio: 3.73
  • Axle Compatibility: Dana 30
  • Technology: Electronic Selectable Locking
  • Durability: Net-forged gears for superior longevity

The Eaton ELocker4 is built to withstand the intense torque loads of off-road driving. Its electronic engagement system is highly reliable, allowing for seamless transitions between open and locked modes. This specific 3.73 ratio model is a perfect upgrade for enthusiasts running larger tires on their Ford Bronco, International Scout, or Jeep Cherokee. By upgrading your differential, you significantly reduce the risk of getting stuck and improve your vehicle's overall off-road capability. Experience the difference that professional-grade drivetrain components make on your next adventure. Find all your essential off-road upgrades at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1966-1971 Ford Bronco Base
1968-1969 Ford Bronco Roadster
1968-1971 Ford Bronco Wagon
1967-1970 International Scout Base
1971-1974 International Scout II Base
1975 International Scout II XLC
1976-1977 International Scout II Base
1976-1977 International Scout II Terra
1976-1977 International Scout II Traveler
1971-1983 Jeep CJ5 Base
1975-1983 Jeep CJ5 Renegade
1977-1980 Jeep CJ5 Golden Eagle
1980-1983 Jeep CJ5 Laredo
1982-1983 Jeep CJ5 Limited
1970-1975 Jeep CJ6 Base
1976-1986 Jeep CJ7 Base
1976-1986 Jeep CJ7 Renegade
1977-1979 Jeep CJ7 Golden Eagle
1980 Jeep CJ7 Golden Hawk
1980-1983 Jeep CJ7 Laredo
1982-1983 Jeep CJ7 Limited
1985-1986 Jeep CJ7 Laredo
2000-2001 Jeep Cherokee Classic
2000-2001 Jeep Cherokee Limited
2000-2001 Jeep Cherokee SE
2000-2001 Jeep Cherokee Sport
1986 Jeep Comanche Custom
1986 Jeep Comanche X
1986 Jeep Comanche XLS
1987-1988 Jeep Comanche Chief
1987-1988 Jeep Comanche Laredo
1987-1992 Jeep Comanche Base
1987-1992 Jeep Comanche Pioneer
1988-1992 Jeep Comanche Eliminator
1993 Jeep Grand Cherokee Base
1993-2004 Jeep Grand Cherokee Laredo
1993-2004 Jeep Grand Cherokee Limited
1994-1995 Jeep Grand Cherokee SE
1995 Jeep Grand Cherokee Orvis
1997 Jeep Grand Cherokee Orvis
1997-1998 Jeep Grand Cherokee TSi
1998 Jeep Grand Cherokee 5.9 Limited
2002 Jeep Grand Cherokee Sport
2002-2004 Jeep Grand Cherokee Overland
2004 Jeep Grand Cherokee Special Edition
1982-1983 Jeep Scrambler SL
1982-1984 Jeep Scrambler SR
1982-1985 Jeep Scrambler Base
1985 Jeep Scrambler Laredo
1985 Jeep Scrambler Renegade
1987-1988 Jeep Wrangler Sport
1987-1990 Jeep Wrangler Laredo
1987-1993 Jeep Wrangler Base
1988 Jeep Wrangler S
1988-1992 Jeep Wrangler Islander
1988-1995 Jeep Wrangler Sahara
1991-1994 Jeep Wrangler S
1991-1994 Jeep Wrangler Renegade
1994-1995 Jeep Wrangler SE
1995 Jeep Wrangler Rio Grande

…and 47 additional fitments. Contact us to confirm yours.

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