Skip to product information
1 of 5

Eaton

Eaton 915A387 Detroit Truetrac Limited Slip Differential for Dana 60 35-Spline

Regular price
$864.99
Regular price
$940.20
Sale price
$864.99
Shipping calculated at checkout.

In Stock: 6

Orders by 1pm PST ship same business day

Free Shipping w/3-4 Day Delivery

Authorized Dealer

Fitment Guarantee

30-Day Hassle Free Returns


Product Specification:

SKU:EAT915A387

MPN: 915A387

Weight: 44.6 lb

Inventory: 6

Type: Differentials



Vehicle Fitment

  • Dana 60 Axles (Various Makes) - 35-Spline, 4.10 & Down Gear Ratio

Fitment Notes

  • Fits front or rear Dana 60 axles with 35-spline shafts and 4.10 or numerically lower gear ratios.

Features

  • Detroit Truetrac helical-gear limited slip differential provides automatic torque biasing.
  • Maintenance-free design with no wearable friction plates or clutch packs.
  • Smooth power transfer under traction loss for improved handling and stability.
  • Quiet operation with consistent performance in forward and reverse.
  • Enhanced traction for on-road, off-road, towing, and performance applications.
  • All-steel construction optimized for heavy-duty use.
  • Designed for high torque loads typical of trucks and utility vehicles.
  • Compatible with a range of 35-spline Dana 60 applications across multiple vehicle types.

Specifications

  • Part Number: 915A387
  • Differential Type: Limited Slip (LSD)
  • Axle Model: Dana 60 (HD)
  • Axle Shaft Spline Count: 35
  • Ring Gear Ratio: 4.10 & Down
  • Ring Gear Size: 9.75 in
  • Axle Shaft Diameter: 1.50 in
  • Weight: Approximately 42 lb

Included Components

  • 1x Eaton Detroit Truetrac Limited Slip Differential (915A387)

Product Description

The Eaton 915A387 Detroit Truetrac is a high-performance limited slip differential engineered for Dana 60 axles with 35-spline shafts and 4.10 & down gear ratios. Its advanced helical gear design automatically biases torque to the wheel with the most traction, improving cornering, acceleration, and control without requiring driver intervention. Unlike traditional clutch-based limited slip units, the Truetrac design is maintenance-free and operates quietly, making it ideal for daily driving, off-road adventures, and heavy-duty towing applications. 

Built for strength and reliability, this differential suits a variety of truck and SUV platforms that use the Dana 60 axle. Whether you're upgrading performance, enhancing traction in adverse conditions, or replacing a worn unit, the 915A387 delivers smooth torque distribution and superior durability. Be sure to confirm gear ratio and spline count compatibility before installation. 

Photo - Primary
Photo - Primary
Photo - Primary
Photo - Unmounted