The Eaton ELocker Differential (Part #19977-010) is a robust, electronically controlled locking differential designed for Dana 44 front axles with 30-spline shafts and 3.73 & down gear ratios. With the push of a button, the ELocker provides full axle lock engagement—delivering 100% torque transfer to both wheels for ultimate traction when it’s needed most.

Built for the toughest off-road environments, the ELocker offers the reliability and simplicity of electronic activation without the need for external air compressors or complex wiring. Whether navigating rocks, mud, or uneven terrain, the Eaton ELocker ensures immediate traction on demand while maintaining smooth highway performance when disengaged.

Features:

• Electronically activated locking differential for instant traction control

• Provides 100% torque transfer to both wheels when locked

• Simple push-button activation—no air lines or compressors required

• Designed for Dana 44 front axles with 30-spline shafts

• Durable all-gear construction for long service life

• Ideal for mixed on-road and extreme off-road applications

Specifications

Fitment:
Designed for Dana 44 front axles with 3.73 & down gear ratios, compatible with a wide range of classic and modern 4x4 vehicles.

• Ford (1967–1996): Half-Ton, Three-Quarter-Ton Trucks, Vans, SUVs – Front Dana 44

• Jeep (1970–2009): Cherokee, Grand Cherokee, Liberty, Scrambler, Wagoneer, Wrangler – Front Dana M-44-IF, IFHD (3.73 & Down)

• International Harvester (1967–1980): 100/1100, Scout I & II, Traveler, Metro Van – Front/Rear Dana 44

• Jeep (1971–2006): Various Dana 44 Rear Axles (Wrangler, Wagoneer, etc.) – 3.73 & Down

• Ford (1977–1979): Half-Ton Truck, Van, SUV – Rear Dana 44

Ideal Usage:

• Off-Road: Rock Crawl, Light Trail, Sand Sports, Work Truck / Towing, Extreme Off-Road

• On Road: Work Truck / Towing

This Part Fits: