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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Eaton
Eaton Detroit Truetrac AMC 20 Rear Differential - 29 Spline 1.27in 3.08+ Ratio Select Jeep/Hummer 1976-2009
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 1976-2009 Jeep Cherokee, CJ5, CJ7, Scrambler, Wagoneer, and Hummer H1, H2, and H3 models equipped with the AMC 20 rear axle.
The Eaton Detroit Truetrac is a professional-grade helical-gear limited-slip differential designed to maximize wheel traction and improve handling under diverse driving conditions. Unlike traditional plate-style LSDs, the Truetrac utilizes a maintenance-free gear-driven design that eliminates the need for friction modifiers or wearable clutch packs. Its operation is smooth and automatic, engaging instantly in both forward and reverse to transfer torque to the wheel with the most grip.
- Fits AMC 20 rear axles with 29-spline, 1.27-inch diameter shafts
- Compatible with 3.08 and numerically higher gear ratios
- Maintenance-free helical gear design for quiet, reliable operation
- Optimized torque bias ratios for improved acceleration and off-road capability
- Requires no special lubrication or additives; use standard gear oil
- Automatic engagement works in both forward and reverse
- Manufacturer Part Number: 912A579
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006 | Hummer | H1 | Alpha |
| 2003-2004 | Hummer | H1 | Base |
| 2003-2009 | Hummer | H2 | Base |
| 2008-2009 | Hummer | H3 | Alpha |
| 2006-2009 | Hummer | H3 | Base |
| 2009 | Hummer | H3 | Championship Series |
| 2007-2009 | Hummer | H3 | X |
| 1976-1986 | Jeep | Cherokee | Base |
| 1981-1982,1985-1986 | Jeep | Cherokee | Chief |
| 1985-1986 | Jeep | Cherokee | Laredo |
| 1983,1985-1986 | Jeep | Cherokee | Pioneer |
| 1976-1977 | Jeep | Cherokee | S |
| 1978-1980 | Jeep | Cherokee | Wide Track |
| 1983 | Jeep | Cherokee | Wide Track Chief |
| 1976-1983 | Jeep | CJ5 | Base |
| 1977-1980 | Jeep | CJ5 | Golden Eagle |
| 1980-1983 | Jeep | CJ5 | Laredo |
| 1982-1983 | Jeep | CJ5 | Limited |
| 1976-1983 | Jeep | CJ5 | Renegade |
| 1976-1986 | Jeep | CJ7 | Base |
| 1977-1979 | Jeep | CJ7 | Golden Eagle |
| 1980 | Jeep | CJ7 | Golden Hawk |
| 1980-1983,1985-1986 | Jeep | CJ7 | Laredo |
| 1982-1983 | Jeep | CJ7 | Limited |
| 1976-1986 | Jeep | CJ7 | Renegade |
| 1984-1986 | Jeep | Grand Wagoneer | Base |
| 1984-1985 | Jeep | Grand Wagoneer | Limited |
| 1981-1985 | Jeep | Scrambler | Base |
| 1985 | Jeep | Scrambler | Laredo |
| 1985 | Jeep | Scrambler | Renegade |
| 1982-1983 | Jeep | Scrambler | SL |
| 1982-1984 | Jeep | Scrambler | SR |
| 1976-1982,1984-1986 | Jeep | Wagoneer | Base |
| 1982-1983 | Jeep | Wagoneer | Brougham |
| 1976 | Jeep | Wagoneer | Custom |
| 1979-1986 | Jeep | Wagoneer | Limited |
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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Eaton Detroit Truetrac AMC 20 Rear Differential - 29 Spline 1.27in 3.08+ Ratio Select Jeep/Hummer 1976-2009
This product will be available soon, but you can pre-order now to get on the list before others!
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Fits select 1976-2009 Jeep Cherokee, CJ5, CJ7, Scrambler, Wagoneer, and Hummer H1, H2, and H3 models equipped with the AMC 20 rear axle.
The Eaton Detroit Truetrac is a professional-grade helical-gear limited-slip differential designed to maximize wheel traction and improve handling under diverse driving conditions. Unlike traditional plate-style LSDs, the Truetrac utilizes a maintenance-free gear-driven design that eliminates the need for friction modifiers or wearable clutch packs. Its operation is smooth and automatic, engaging instantly in both forward and reverse to transfer torque to the wheel with the most grip.
- Fits AMC 20 rear axles with 29-spline, 1.27-inch diameter shafts
- Compatible with 3.08 and numerically higher gear ratios
- Maintenance-free helical gear design for quiet, reliable operation
- Optimized torque bias ratios for improved acceleration and off-road capability
- Requires no special lubrication or additives; use standard gear oil
- Automatic engagement works in both forward and reverse
- Manufacturer Part Number: 912A579
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2006 | Hummer | H1 | Alpha |
| 2003-2004 | Hummer | H1 | Base |
| 2003-2009 | Hummer | H2 | Base |
| 2008-2009 | Hummer | H3 | Alpha |
| 2006-2009 | Hummer | H3 | Base |
| 2009 | Hummer | H3 | Championship Series |
| 2007-2009 | Hummer | H3 | X |
| 1976-1986 | Jeep | Cherokee | Base |
| 1981-1982,1985-1986 | Jeep | Cherokee | Chief |
| 1985-1986 | Jeep | Cherokee | Laredo |
| 1983,1985-1986 | Jeep | Cherokee | Pioneer |
| 1976-1977 | Jeep | Cherokee | S |
| 1978-1980 | Jeep | Cherokee | Wide Track |
| 1983 | Jeep | Cherokee | Wide Track Chief |
| 1976-1983 | Jeep | CJ5 | Base |
| 1977-1980 | Jeep | CJ5 | Golden Eagle |
| 1980-1983 | Jeep | CJ5 | Laredo |
| 1982-1983 | Jeep | CJ5 | Limited |
| 1976-1983 | Jeep | CJ5 | Renegade |
| 1976-1986 | Jeep | CJ7 | Base |
| 1977-1979 | Jeep | CJ7 | Golden Eagle |
| 1980 | Jeep | CJ7 | Golden Hawk |
| 1980-1983,1985-1986 | Jeep | CJ7 | Laredo |
| 1982-1983 | Jeep | CJ7 | Limited |
| 1976-1986 | Jeep | CJ7 | Renegade |
| 1984-1986 | Jeep | Grand Wagoneer | Base |
| 1984-1985 | Jeep | Grand Wagoneer | Limited |
| 1981-1985 | Jeep | Scrambler | Base |
| 1985 | Jeep | Scrambler | Laredo |
| 1985 | Jeep | Scrambler | Renegade |
| 1982-1983 | Jeep | Scrambler | SL |
| 1982-1984 | Jeep | Scrambler | SR |
| 1976-1982,1984-1986 | Jeep | Wagoneer | Base |
| 1982-1983 | Jeep | Wagoneer | Brougham |
| 1976 | Jeep | Wagoneer | Custom |
| 1979-1986 | Jeep | Wagoneer | Limited |
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