The Eaton Detroit Locker 225S15 is a locking differential designed for the Rockwell 100, 102, and 200 rear axle series found in General Motors one-ton HD trucks through model year 1986. This No-SPIN unit fits axles with a 1.62 in. shaft diameter, a 12 in. ring gear, and a 16-spline gear count. It is compatible with all gear ratios available in this axle family. Applications span a wide range of uses including towing, work truck duty, drag racing, circle track, rock crawl, and extreme off-road. Call us to confirm proper fit for your specific axle build before ordering.
Features
Locking differential (No-SPIN design) for positive traction under load
Fits Rockwell 100, 102, and 200 rear axle series
12 in. ring gear size; compatible with all gear ratios in this axle family
16-spline gear count; 1.62 in. axle shaft diameter
Rear axle location; fits General Motors one-ton HD trucks through 1986 model year
Suited for on-road and off-road use including towing, rock crawl, drag racing, and circle track
Tech Specs
- Differential Type: Locking (No-SPIN)
- Axle Description: Rockwell 100 / 102 / 200
- Axle Location: Rear
- Ring Gear Size: 12 in.
- Gear Spline Tooth Count: 16
- Axle Shaft Diameter: 1.62 in.
- Gear Ratio: All
- Vehicle Make: General Motors
- Vehicle Type: One-Ton HD Truck
- Model Year: Through 1986
