Eaton 19977-010 ELocker Dana 44 Front 30-Spline 3.73-&-Down Selectable Locker

Regular price: $1,509.99
Regular price: ~~$1,606.37~~
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Product Specification:

SKU:EAT19977-010

MPN: 19977-010

Weight: 28.8 lb

Inventory: 14

Type: Differentials

Vehicle Fitment

1967-1980 International Harvester 100/1100, Scout I & II, Metro Van (Dana 44 Rear, 3.73 & lower)
1967-1996 Ford ¾-Ton Truck, Van, SUV (Dana 44 Front, 3.73 & lower)
1970-1982 Ford ½-Ton Truck, Van, SUV (Dana 44 Front, 3.73 & lower)
1970-2009 Jeep Cherokee, Grand Cherokee, Liberty, Post Office Truck, Scrambler, Wagoneer, Wrangler (Front Dana M-44-IF / IFHD)
1971-2006 Jeep Cherokee, Grand Cherokee, Liberty, Scrambler, Wagoneer, Wrangler (Rear Dana 44, 3.73 & lower)

Fitment Notes

Ring gear-to-pinion ratio must be 3.73 or numerically lower ("3.73 & dn")
Does not fit Jeep Quadra-Drive II system vehicles.
Designed for Dana 44 axles only (front or rear as listed)

Features

Selectable electronic locking (push-button / driver controlled) differential (ELocker)
Full-lock when activated; open differential operation when not needed
Net-forged gears for enhanced strength & durability
Works in both forward and reverse directions under lock mode
Includes wiring harness and switch for driver activation
Heavy-duty steel carrier case built for off-road and towing usage
Low drag when in open differential mode, minimizing wear when traction lock is not needed
Proven Eaton reliability with tested service and performance in OEM + aftermarket contexts

Specifications

Axle Type: Dana 44 (Front or Rear depending on vehicle)
Spline Count: 30 splines
Axle Shaft Diameter: 1.31 inches
Ring Gear Size: 8.5 inches
Gear Ratio: 3.73 & lower (3.73 & down)
Weight: ~27 lb
Differential Type: Electronic selectable locking (ELocker)

Included Components

1x Eaton ELocker Differential Carrier (19977-010)
1x Wiring Harness / Switch for activation
Installation Instructions

Product Description

The Eaton 19977-010 ELocker is a high-performance selectable locking differential engineered for Dana 44 axles with a 30-spline, 1.31-inch shaft, and 8.5-inch ring gear. Designed for gear ratios of 3.73 and lower, this unit installs in front or rear applications depending on the vehicle model and gives you the ability to toggle between open differential behavior and full locking for maximum traction. Ideal for off-road, towing, and severe duty use, it includes net-forged gears, a durable steel case, and electronic activation via included switch and wiring.

Fitment spans many classic and modern 4x4 applications: Jeep Wranglers (JK & others), older Ford, Chevy/GMC, and IHC/Scout trucks, vans and SUVs that were built with Dana 44 axles and meet the ratio / spline requirements. Be sure your vehicle's axle is a Dana 44, has 30 splines, uses a 3.73 or numerically lower gear set, and that it is not part of incompatible systems such as Jeep Quadra-Drive II. If all criteria match, this ELocker offers smooth, reliable on-demand locking performance without the downsides of full-time lockers.