Eaton Detroit Truetrac Differential TT ASM SCM 420

Upgrade your drivetrain with the Eaton Detroit Truetrac Differential TT ASM SCM 420, a proven traction solution for drivers who want better performance without sacrificing everyday drivability. Designed to automatically improve traction in changing road and trail conditions, the Detroit Truetrac is a smart upgrade for off-road builds, tow rigs, daily drivers, and performance-focused vehicles.

Unlike a traditional locking differential, the Eaton Detroit Truetrac uses a gear-driven limited-slip design to transfer torque smoothly to the wheel with more traction. This helps improve control in situations like loose dirt, gravel, mud, wet pavement, and uneven terrain while maintaining predictable handling and quiet operation.

Built for durability and long-term performance, the TT ASM SCM 420 differential is an excellent choice for drivers looking to improve traction, stability, and confidence in a wide range of driving conditions. Whether you use your vehicle for off-road adventures, hauling, work duties, or daily driving, this differential offers a strong balance of capability and street-friendly behavior.

The Eaton Detroit Truetrac Differential is a trusted upgrade for enthusiasts who want dependable traction enhancement, rugged internal design, and maintenance-friendly performance for both on-road and off-road use.

Key Features

• Eaton Detroit Truetrac gear-driven limited-slip differential
• Automatically improves traction without manual engagement
• Smooth, quiet operation for street and trail use
• Helps transfer torque to the wheel with more grip
• Great for dirt, gravel, mud, wet pavement, and uneven terrain
• Durable internal design for long-term performance
• Ideal for off-road vehicles, tow rigs, work trucks, and daily drivers
• Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
• No Special Lubrication Or Friction Modifiers Needed
• Helical Gear Limited Slip Differential
• Durable; Smooth; Quiet Operation
• Works In Forward And Reverse
• Ideal For Most Vehicles
• Automatic Engagement

Fitment:
1986 Toyota 4Runner
1986 Toyota Pickup
1987 Toyota 4Runner
1987 Toyota Pickup
1988 Toyota 4Runner
1988 Toyota Pickup
1989 Toyota 4Runner
1989 Toyota Pickup
1990 Toyota 4Runner
1990 Toyota Pickup
1991 Toyota 4Runner
1991 Toyota Pickup
1992 Toyota 4Runner
1992 Toyota Pickup
1993 Toyota 4Runner
1993 Toyota Pickup
1994 Toyota 4Runner
1994 Toyota Pickup
1995 Toyota 4Runner
1995 Toyota Pickup
1995 Toyota T100
1995 Toyota Tacoma