The Eaton Detroit Locker 916A427 is a limited-slip differential built for the Dana 80 rear axle. It carries a 37-spline gear count, accepts an 11.5 in ring gear, and is rated for gear ratios of 4.10 and up. The 1.6 in axle shaft diameter and compatibility with OE 3.73 thin gear sets give builders flexibility when running deeper ratios. Applications span General Motors and Ford one-ton HD trucks, vans, wagons, and cab-and-chassis configurations with model year ranges starting 1992 (GM) and 1996 (Ford). Vehicle usage covers the full spectrum from daily towing and work-truck duty to rock crawling and drag racing. Also referenced as ED916A427. Call us to confirm proper fit for your specific axle build.
Features
Dana 80 rear axle, limited-slip differential design
37-spline gear count with 1.6 in axle shaft diameter
11.5 in ring gear, rated for 4.10 and up gear ratios
Compatible with OE 3.73 thin gear sets
Fits General Motors applications from 1992 and Ford applications from 1996
Suited for towing, rock crawling, drag racing, and extreme off-road use
Tech Specs
- Ring Gear Ratio: 4.10 and up
- Differential Type: Limited Slip (LSD)
- Axle Description: Dana 80
- Axle Location: Rear
- Ring Gear Size: 11.5 in
- Gear Spline Tooth Count: 37
- Axle Shaft Diameter: 1.6 in
- Compatibility Note: Will fit OE 3.73 thin gear sets
- Vehicle Make: General Motors, Ford
- Model Year Range (GM): 1992-2007
- Model Year Range (Ford): 1996-2016
- Vehicle Type: One-Ton HD Truck, One-Ton Truck, Van, Wagon, Cab and Chassis
- Vehicle Usage: Street/Towing, Drag Racing, Rock Crawl, Extreme Off-Road, Light Trail/Sand Sports, Circle Track, Restoration
- Alternate Part Number: ED916A427
