Genuine Eaton Detroit Locker 912a557 differential P/N: 912A557, in box ready to ship! Do not hesitate to ask us any questions.
Features
Detroit Truetrac Differential; GM 8.5in. 10 Bolt; 28 Spline; 2.73 And Up;
Tech Specs
- RIng Gear Ratio: 2.73 & up
- Differential Type: Limited Slip (LSD)
- Axle Description: GM 10 bolt
- Vehicle Type (Model): Half-Ton Truck, Three Quarter-Ton Truck
- Model Product Notes: All Eaton Differential made for General Motors 8.5" and 8.6" axles require special bearings. For axles with small bearing bores (race O.D. or 2.89"), usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06"), usually found on vehicles from 1999-2013, bearing LM603049 and race LM603012 are required. Manual locking hubs recommended for front axle applications.
- Vehicle Usage: Off-Road: Work Truck / Towing, On Road: Drag Racing, Off-Road: Light Trail / Sand Sports, On Road: Restoration, On Road: Street and Muscle, On Road: Work Truck / Towing, On Road: Circle Track
- Gear Spline Tooth Count: 28 EA
- MODEL YEAR END: 1988, 1989
- Axle Shaft Diameter: 1.2 in
- Ring Gear Size: 8.5 in
- Axle Location: Front
- Gear Ratio: 2.73 & up
- VEHICLE MAKE: General Motors
- MODEL YEAR START: 1977
