The Eaton Detroit Locker 913A591 is a limited-slip differential designed for Dana 44, Dana 44 C-Clip IFS, and Dana M-44-IF/IFHD front axle applications. It fits non-disconnect axles only. Spec highlights: 30-spline axle shafts, 1.31 in. axle shaft diameter, 8.5 in. ring gear, and compatibility with gear ratios of 3.73 and numerically lower. Vehicle coverage spans half-ton and three-quarter-ton trucks, vans, SUVs, and 4x4 pickups from Ford, General Motors, Chrysler, Dodge, Ram, Plymouth, Jeep, and International Harvester. Jeep applications include Cherokee, Grand Cherokee, Liberty, Wrangler, Scrambler, Wagoneer, and others. Suited for use ranging from daily street driving and towing to rock crawling and extreme off-road work. Call us to confirm proper fit for your specific year and axle configuration.
Features
Dana 44 front axle fitment: Dana 44, Dana 44 C-Clip IFS, Dana M-44-IF, IFHD - non-disconnect only
30-spline axle shaft engagement, 1.31 in. axle shaft diameter
8.5 in. ring gear; compatible with 3.73 gear ratio and numerically lower
Limited-slip differential (LSD) design
Covers Ford, GM, Chrysler, Dodge, Ram, Plymouth, Jeep, and International Harvester half-ton and three-quarter-ton platforms
Suited for rock crawling, extreme off-road, towing, street driving, and restoration builds
Tech Specs
- Part Number: 913A591
- Differential Type: Limited Slip (LSD)
- Axle Location: Front
- Axle Description: Dana 44, Dana 44 C-Clip IFS, Dana M-44-IF, IFHD (non-disconnect only)
- Ring Gear Size: 8.5 in.
- Gear Ratio: 3.73 and down
- Gear Spline Tooth Count: 30
- Axle Shaft Diameter: 1.31 in.
- Vehicle Makes: Ford, General Motors, Chrysler, Dodge, Ram, Plymouth, Jeep, International Harvester
- Vehicle Types: Half-Ton Truck/Van/SUV, Three-Quarter-Ton Truck/Van/SUV, 4x4 Half-Ton Pickup, Scout I and II, Traveler, Metro Van, Wagon, Cherokee, Grand Cherokee, Liberty, Wrangler, Scrambler, Wagoneer, Post Office Truck
- Vehicle Usage: Off-Road Rock Crawl, Extreme Off-Road, Light Trail/Sand Sports, Work Truck/Towing, Street and Muscle, Drag Racing, Circle Track, Restoration
