Eaton Corp. 912A557 Detroit Truetrac GM 8.5" 10 Bolt Differential
Eaton Corp. 912A557 Detroit Truetrac GM 8.5" 10 Bolt Differential
Eaton Corporation

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#22412557

Eaton Corp. 912A557 Detroit Truetrac GM 8.5" 10 Bolt Differential

  • 2.73 & up Ring Gear Ratio
  • 1.2 in. Axle Shaft Diameter
  • 8.5 in. Ring Gear Size
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Rear end model:

8.5 late

Dana 60 frontDana 60 rear8.5 early7.5 28 spline7.5 26 splineGM 12 boltFord 8.8Dana 30Dana 44 rearDana 44 front

$749.99

/each

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Product Summary

GM 8.5 Inch 10-Bolt, 28 Axle Splines

  • 2.73 & up Ring Gear Ratio
  • 1.2 in. Axle Shaft Diameter
  • 8.5 in. Ring Gear Size
  • Limited Slip
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Key Specs

MFG. Part #912A557
BrandEaton Corporation
Axle Splines28
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Eaton Corporation 912A557 Details

The Eaton Corporation 912A557 Detroit Truetrac is a limited-slip differential designed for GM 8.5-inch 10-bolt rear ends with 28-spline axles. It supports gear ratios of 2.73 and higher, making it suitable for a wide range of street and performance applications. With a 1.2-inch axle shaft diameter and 8.5-inch ring gear size, this differential enhances traction by smoothly transferring torque to the wheel with the most grip. Weighing 26.72 pounds, the Truetrac delivers durable, maintenance-free performance through its gear-driven, clutchless design.

  • 2.73 & up Ring Gear Ratio
  • 1.2 in. Axle Shaft Diameter
  • 8.5 in. Ring Gear Size
  • Limited Slip

Specs

26.72 lbs

Warranty Information

Eaton products carry a one-year warranty from the date of purchase against defects in material and workmanship. The use of tires with diameters larger than 35 in. on limited-slip differentials will void this warranty. The use of tires larger than vehicle manufacturer recommendations will void this warranty on ELocker differentials. Differential assemblies must be registered by the consumer directly to Eaton to validate their warranties.

Eaton Corporation 912A557 Specifications

KEY SPECS
MFG. Part #912A557
BrandEaton Corporation
Axle Splines28
GENERAL
Sold in QuantityEach
GTIN Code840379318500

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