The Eaton Detroit Locker electric locking differential, part number 19659-010 or 19659010, fits General Motors 8.5" and 8.6" ring gear axles with a 30-spline, 1.32-inch axle shaft diameter and a ring gear ratio of 2.73 and up. Compatible axle configurations include GM 10-bolt, GM 10-bolt C-Clip, GM 10-bolt C-Clip Van, and H3 axles across Chevrolet, GMC, Pontiac, Buick, Oldsmobile, and Hummer platforms. Designed for on-road work truck and towing duty as well as off-road use including rock crawl and extreme terrain. Note: GM 8.5"/8.6" axles require specific bearings depending on bearing bore size. Call us to confirm proper fit and bearing requirements for your application.
Features
Electric locking differential for GM 8.5" and 8.6" ring gear axles
30-spline, 1.32-inch axle shaft diameter
Ring gear ratio: 2.73 and up
Fits GM 10-bolt, GM 10-bolt C-Clip, GM 10-bolt C-Clip Van, and H3 axle configurations
Compatible with Chevrolet, GMC, Pontiac, Buick, Oldsmobile, and Hummer applications
Suited for on-road towing and off-road use including rock crawl and extreme off-road
Tech Specs
- Ring Gear Size: 8.5 in (also fits GM 8.6" axles)
- Ring Gear Ratio: 2.73 and up
- Differential Type: Electric Locking
- Gear Spline Tooth Count: 30
- Axle Shaft Diameter: 1.32 in
- Axle Location: Front, Rear
- Axle Description: GM 10-bolt, GM 10-bolt C-Clip, GM 10-bolt C-Clip Van, H3
- Vehicle Makes: General Motors, Chevrolet, Pontiac, Buick, Oldsmobile, Hummer
- Vehicle Types: Half-Ton Truck, Three Quarter-Ton Truck, Passenger Car, H1, H2, H3
- Vehicle Usage: On-Road Work Truck/Towing; Off-Road Light Trail/Sand Sports; Off-Road Extreme; Off-Road Rock Crawl
- Bearing Note (small bore, race O.D. 2.89" - typically pre-1999): Bearing LM102949 and Race LM102911 required
- Bearing Note (large bore, race O.D. 3.06" - typically 1999 to present): Bearing LM603049 and Race LM603012 required
