Eaton Detroit Truetrac Differential, 34 Spline, 1.37-Inch Axle Shaft, Rear 9.75-Inch

The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle. Detroit Truetrac® Differential; 34 Spline; 1.37 in. Axle Shaft Diameter; All Ratios; Rear 9.75 in.;

• 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

The Eaton Detroit Truetrac differential is a helical-gear limited-slip differential designed to improve traction, acceleration, and handling across a wide range of driving conditions. Its automatic operation transfers torque to the wheel with greater traction without requiring driver input, helping maintain forward momentum when grip is reduced.

Part number eat913A477 is engineered for rear axle applications using a 9.75-inch housing, 34-spline axle configuration, and 1.37-inch axle shaft diameter. The Detroit Truetrac uses precision helical gears rather than clutch packs, providing smooth, quiet, and consistent performance in both forward and reverse. Its maintenance-free design does not require special lubrication or friction modifiers, simplifying installation and long-term service.

• Application: Rear 9.75-inch axle applications
• Axle Configuration: 34-spline differential
• Axle Shaft Diameter: 1.37 inches
• Gear Type: Helical-gear limited-slip differential
• Gear Ratio Compatibility: All ratios
• Operating Direction: Forward and reverse
• Engagement: Automatic torque-biasing operation
• Lubrication: No special lubricant or friction modifier required

The Eaton Detroit Truetrac is suitable for many vehicle types and is built to deliver dependable traction with durable, low-maintenance operation. Its optimized torque biasing helps improve acceleration and cornering characteristics while preserving smooth everyday drivability. The package includes one Eaton Detroit Truetrac differential assembly. Vehicle-specific fitment should be verified using axle, spline, shaft diameter, housing, and gear-ratio requirements before installation.

Features:

• Optimized torque bias ratios improve acceleration and handling
• Helical-gear limited-slip design provides smooth, quiet, and durable operation
• Automatic engagement transfers torque without driver input
• Maintenance-free construction requires no special lubricant or friction modifiers

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1