Fits select 2003-2018 Nissan Frontier, Titan, and Xterra models with a Rear Dana 44 axle.

The Eaton Detroit Truetrac is the premier helical-gear style limited-slip differential (LSD) designed to maximize wheel traction and improve vehicle handling. This maintenance-free unit features a sophisticated gear-driven design that senses wheel slip and automatically transfers torque to the wheel with the highest traction. Because it utilizes helical gears rather than clutch packs, the Truetrac provides smooth, quiet operation without the chatter or wear associated with traditional LSDs.

• Axle Application: Rear Dana 44
• Spline Count: 32
• Axle Shaft Diameter: 1.38 inches
• Design Type: Helical-gear torque-biasing
• Serviceability: Maintenance-free design with no clutch packs to replace
• Lubrication: Operates on standard gear oil; no friction modifiers or additives required
• Performance: Automatic engagement in both forward and reverse
• Manufacturer Part Number: 913A582

Fits select 1983-2015 Ford Aerostar, Bronco, Crown Victoria, E-Series, Mustang, Ranger, and Taurus.

The Eaton Detroit Truetrac is a helical-gear style, limited-slip differential designed to maximize wheel traction and improve handling under various driving conditions. Unlike traditional clutch-type units, the Truetrac uses a maintenance-free gear design that requires no special lubrication or friction modifiers. It operates as a standard open differential under normal conditions, automatically engaging to transfer torque to the high-traction wheel when wheel slip occurs.

Engineered for durability and quiet operation, this unit is compatible with both front 8.8-inch and reverse-cut rear 8.8-inch applications using 31-spline axle shafts with a 1.32-inch diameter. Its smooth, automatic engagement makes it an ideal traction solution for daily drivers, performance street builds, and off-road applications where consistent power delivery is required without the chatter of a locker.

• Manufacturer Part Number: 913A561
• Axle Spline Count: 31 Spline
• Axle Shaft Diameter: 1.32 inches
• Application: Fits Front 8.8" or Reverse Rear 8.8" Housings
• Differential Style: Helical Gear Limited Slip (LSD)
• Maintenance: Maintenance-free; requires no friction modifiers
• Operation: Works in both forward and reverse

The Eaton Detroit Truetrac is the premier maintenance-free, helical-gear limited-slip differential, designed to maximize traction and improve handling for select 1964-1972 Buick, Chevrolet, Oldsmobile, and Pontiac vehicles equipped with the 8.875-inch GM 12-bolt rear end.

Unlike traditional clutch-style differentials, the Truetrac utilizes a sophisticated gear-driven design that eliminates the need for friction modifiers or special additives. Under normal driving conditions, it operates as an open differential, but when wheel slip occurs, the helical gears automatically transfer torque to the high-traction wheel. This provides smooth, quiet engagement in both forward and reverse, making it an ideal choice for street performance, restoration projects, and light towing.

• Manufacturer Part Number: 913A555
• Axle Fitment: GM 8.875-inch (12-Bolt Passenger Car)
• Spline Count: 30 Spline
• Axle Shaft Diameter: 1.29 in
• Gear Ratio Compatibility: 3.08 - 3.90
• Design: Maintenance-free helical gear (clutchless)
• Performance: Optimized torque bias ratios for maximum acceleration

Fits select 1993-2016 Toyota 4Runner, Celica, Sequoia, T100, Tacoma, and Tundra models.

The Eaton Detroit Truetrac is a helical-gear style, limited-slip differential (LSD) designed to maximize wheel traction and improve handling under various driving conditions. Unlike traditional clutch-type differentials, the Truetrac uses a gear-based system that operates smoothly and quietly without the need for friction modifiers or special lubrication.

This maintenance-free unit provides automatic engagement in both forward and reverse, distributing torque to the wheel with the most grip. Its durable construction makes it an ideal solution for street, off-road, and performance applications where reliable traction is critical and consistency is required.

• Manufacturer Part Number: 913A541
• Axle Spline Count: 30
• Axle Shaft Diameter: 1.29 inches
• Compatible Gear Ratios: 3.54 - 5.29
• Differential Type: Helical Gear Limited Slip
• Operation: Automatic, maintenance-free gear-driven engagement

Fits select 1970-2013 Buick, Chevrolet, and GMC vehicles equipped with GM 8.5-inch or 8.6-inch rear axles. The Eaton Detroit Truetrac is a helical-gear style, limited-slip differential designed to maximize wheel traction and improve handling characteristics under a variety of driving conditions.

Unlike traditional clutch-style differentials, the Truetrac uses a maintenance-free design that requires no special friction modifiers or lubrication additives. The helical gear system operates automatically, transferring torque to the wheel with the most grip without the chatter or wear associated with clutch plates. This unit provides smooth, quiet operation in both forward and reverse, making it a versatile traction solution for daily drivers, work trucks, and performance applications alike.

• Manufacturer Part Number: 913A481
• Axle Shaft Diameter: 1.32 inch
• Spline Count: 30
• Compatible Gear Ratios: 2.73 and numerically higher
• Housing Fitment: GM 8.5-inch and 8.6-inch rear ends
• Design: Helical gear limited-slip (clutchless)
• Operation: Maintenance-free, automatic engagement

Fits select 1997-2021 Ford and Lincoln vehicles (3.0L) equipped with a 9.75-inch rear axle.

The Eaton Detroit Truetrac is a helical-gear style, limited-slip differential designed to provide smooth, automatic traction on demand. Unlike traditional clutch-style LSDs, the Truetrac uses a gear-based system that requires no friction modifiers and has no clutches to wear out or replace. This makes it a maintenance-free solution for improving acceleration and handling in both on-road and off-road conditions.

This unit engages automatically when it senses wheel slip, transferring torque to the tire with the most grip. It operates quietly and remains transparent during normal driving while providing significant traction benefits in forward and reverse. It is an ideal upgrade for vehicles needing consistent torque delivery without the harshness of a mechanical locker.

• Manufacturer Part Number: 913A477
• Axle Shaft Diameter: 1.37 inches
• Spline Count: 34
• Ring Gear Diameter: 9.75 inches
• Differential Type: Helical Gear Limited Slip
• Housing Material: Heavy-duty steel
• Lubrication: No special friction modifiers required
• Operation: Maintenance-free automatic engagement

Fits select 1966-2002 Chrysler, Dodge, and Plymouth vehicles including the 300, Challenger, Charger, Dart, and Town & Country equipped with Dana 60 rear axles.

The Eaton Detroit Truetrac (MPN 913A389) is a helical-gear style, limited-slip differential designed to provide smooth, automatic traction management. Unlike traditional clutch-style LSDs, the Truetrac operates using a sophisticated gear-based system that senses wheel slip and automatically transfers torque to the wheel with the most grip. This design is maintenance-free, requiring no special friction modifiers or additives—just standard gear oil as recommended by the manufacturer.

Built for durability and quiet operation, this unit is ideal for street, strip, and light off-road applications. It works seamlessly in both forward and reverse, providing optimized torque bias ratios to improve acceleration and cornering stability without the chatter or tire scrubbing associated with locker differentials.

• Manufacturer Part Number: 913A389
• Axle Application: Dana 60 Rear
• Spline Count: 30 Spline
• Axle Shaft Diameter: 1.31 inches
• Gear Ratio Compatibility: 4.10 and Numerically Lower (Down)
• Differential Type: Helical Gear Limited Slip (LSD)
• Operation: Fully automatic, maintenance-free operation with no clutches to wear out

Fits select 1971-2010 Chrysler and Dodge vehicles, including Charger, PT Cruiser, Neon, and B-Series vans.

The Eaton Detroit Truetrac is a maintenance-free, helical-gear style limited-slip differential designed to maximize wheel traction and improve handling. Unlike traditional plate-style LSDs, the Truetrac utilizes a gear-based timing system that provides smooth, automatic engagement without the need for friction modifiers or special lubrication. This design ensures quiet operation in both forward and reverse, making it an ideal traction solution for street, strip, and light-duty off-road applications.

• Axle Spline Count: 31
• Axle Shaft Diameter: 1.32 inches
• Gear Ratio Compatibility: 2.76 - 4.56
• Differential Type: Helical Gear Limited Slip
• Operation: Automatic torque-biasing for maximum acceleration
• Maintenance: Maintenance-free design; requires no friction modifiers
• MPN: 913A368

Fits select 1964-1982 Chevrolet and GMC C10, K10, Blazer, Jimmy, Suburban, and G-Series vans.

The Eaton Detroit Truetrac is the industry-leading helical-gear style limited-slip differential, engineered to maximize wheel traction and improve handling in your GM half-ton truck. Unlike traditional clutch-style LSDs, the Truetrac uses a maintenance-free gear design that eliminates the need for friction modifiers or special additives. It operates as a standard open differential under normal conditions, but automatically engages to transfer torque to the high-traction wheel when wheel slip occurs.

Built for durability and quiet performance, this unit provides smooth operation in both forward and reverse. It is an ideal traction solution for street, work, or off-road use, where consistent power delivery is required without the harshness of a mechanical locker.

• Manufacturer Part Number: 913A315
• Axle Shaft Diameter: 1.30in
• Spline Count: 30
• Compatible Gear Ratios: 3.73 and Up
• Differential Type: Helical Gear Limited Slip
• Maintenance-free design; no clutches to wear out
• Requires no friction modifiers
• Automatic engagement for seamless traction

Fits 2010-2015 Chevrolet Camaro LS, LT, SS, Z/28, and ZL1 models.

The Eaton Detroit Truetrac is a helical-gear style, limited-slip differential designed to maximize wheel traction and improve handling for 5th Gen Camaro applications. Unlike traditional clutch-style differentials, the Truetrac utilizes a maintenance-free helical gear design that operates smoothly and quietly without the need for friction modifiers or special lubrication.

This differential provides automatic engagement in both forward and reverse, delivering optimized torque bias ratios to ensure maximum acceleration and stable power delivery during cornering. Its durable construction replaces the factory unit to provide consistent performance without the wear and tear associated with friction discs.

• Manufacturer Part Number: 912A686
• Axle Spline Count: 32-Spline
• Compatible Ratios: 3.45 and 3.72 Ring and Pinion
• Design: Helical Gear Limited Slip (LSD)
• Maintenance: No friction modifiers or special additives required
• Operation: Smooth, automatic engagement in forward and reverse

Fits select 1970-1993 Volvo 142, 144, 164, 240, 242, 245, and 265.

The Eaton Detroit Truetrac (MPN 912A588) is a premium helical-gear style limited-slip differential that provides smooth, automatic traction control. This Dana 30 unit is engineered to maximize wheel grip and enhance handling characteristics without the maintenance requirements or chatter of traditional clutch-type differentials.

The gear-driven internal mechanism operates quietly and requires no friction modifiers or special lubrication. It functions seamlessly in both forward and reverse, making it a versatile traction solution for street performance, restoration projects, or light-duty off-road use.

• Compatible with Dana 30 axle housings
• Fits 27-spline axle shafts with a 1.15-inch diameter
• Designed for gear ratios 3.73 and numerically higher
• Helical gear design eliminates the need for clutch maintenance or friction modifiers
• Optimized torque bias for improved acceleration and cornering stability
• Manufacturer Part Number: 912A588