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Vehicle Info NeededDETROIT LOCKERPART NUMBER: 357-912A557
Detroit Truetrac Differential GM 10-Bolt
$74999
Ships on Sep 14, 2026
Lowest Price GuaranteeGM 10-Bolt
- Detroit Truetrac Differential
- GM 10-Bolt
- 1977-88 GM Car/Truck
- 28-Spline Axles
- 8.5'' Diameter Ring Gear
- Fits 2.73-5.13 Gear Ratios
- Front Only
All GM 8.5"/8.6"Eaton differentials require special bearings. For 28 spline axles with small bearing bores (race O.D. of 2.89"), usually found on vehicles prior to 1999, bearing LM-102949 and race LM-102911 are required. For 30 spline axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999 to present, bearing LM-603049 and race LM-603012 are required.
Enhance Your Vehicle's Driving Experience with a Trutrac Differential
The Detroit Truetrac is a helical-gear-style performance differential that maximizes wheel traction and enhances driving and handling characteristics. These units operate as a standard or open differential under normal driving conditions and are smooth, quiet, and automatic. They will engage without any driver's knowledge or action required providing worry-free performance.
Product LineDetroit Truetrac Differentials
BrandDETROIT LOCKER
Package Height8.0
Package Width8.2
Package Length8.8
Weight25.95 PG
Part CategoryPerformance Parts
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
