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Eaton Detroit Truetrac Diff 30 Spline 1.30in Axle Shaft Dia 3.73 & Up Ratio GM Half Ton Truck

SKU: EAT913A315

Differential Carriers

EAT Detroit Truetrac Diffs...

Eaton Detroit Truetrac Diff 30 Spline 1.30in Axle Shaft Dia 3.73 & Up Ratio GM Half Ton Truck

SKU: EAT913A315

Differential Carriers

EAT Detroit Truetrac Diffs...

A$1,830.96
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Eaton Detroit Truetrac Diff 30 Spline 1.30in Axle Shaft Dia 3.73 & Up Ratio GM Half Ton Truck

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.

Additional Information

Detroit Truetrac® Differential; 30 Spline; 1.30 in. Axle Shaft Diameter; 3.73 And Up Ring Gear Pinion Ratio; Also Fits GM Half Ton Truck; Rear;

Data: v4.2 - Upd: 2026-11-11 00:35:04

Features

  • Automatic Engagement
  • Durable; Smooth; Quiet Operation
  • Helical Gear Limited Slip Differential
  • Ideal For Most Vehicles
  • No Special Lubrication Or Friction Modifiers Needed
  • Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
  • Works In Forward And Reverse

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Downloads

# Document Type Download
1. Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Data: v2 - Desc: v4.2 - Upd: 2026-11-07 20:12:51

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Eaton
StreetFX SKU eat913A315
SFX Item ID 4500411
Accounting SKU eat-913A315
Manufacturer SKU 913A315
Manufacturer UPC N/A
Alternative References ETN-913A315

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 12-Bolt Truck, Each

Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.

Product Attributes
BrandEATON
NotesFits 3.73 gear ratio and numerically higher.
QuantitySold individually.
Part TypeDifferential Carriers
Cover Bolts12
Product LineEaton Detroit Truetrac Differentials
Carrier Series4
Carrier MaterialSteel
Special AttentionEaton recommends a petroleum/mineral based GL-5 80W90 gear oil for all Truetrac differentials. Do not use synthetic gear oil or friction modifiers.
Manufacturer of AxleGM
Aftermarket Carrier StyleHelical gear
Carrier Bearings IncludedNo
Axle Shaft Spline Quantity30
Manufacturer's Part Number913A315
Differential Case Design TypeGM 8.875 in. (12-bolt), truck

Compatibility

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