Detroit Locker 19977-010 Eaton E-Locker Differential for Dana 44 30 Spline 3.73 and Down

The Detroit Locker 19977-010 Eaton E-Locker is an electronically actuated locking differential designed for Dana 44 axles with 30-spline axle shafts and gear ratios of 3.73:1 and lower. This advanced differential allows drivers to switch from fully open to 100% locked operation at the flip of a dashboard-mounted switch, providing complete control over traction on demand.

Key Features:

• Electromagnetic locking mechanism switches from open to fully locked differential instantly
• 30-spline configuration for Dana 44 axles with 1.31-inch axle diameter
• Compatible with gear ratios 3.73:1 and down
• 4-pinion design provides increased strength for higher driveline torques
• Net-forged gears offer superior strength and durability compared to standard cut gears
• 8.5-inch ring gear compatibility
• Operates as open differential during normal driving for smooth cornering and fuel economy
• When engaged, captures 100% of available torque and distributes it equally to both wheels
• Includes complete wiring harness with relay, diode, and fuse for easy installation

Under normal driving conditions, the E-Locker functions as an open differential, allowing wheels to rotate at different speeds for smooth cornering and optimal tire wear. When encountering challenging terrain such as mud, snow, rocky trails, or other obstacles, simply activate the dash switch to engage full lockup. The electromagnetic mechanism instantly locks the differential, sending equal torque to both wheels regardless of traction conditions. This selectable design combines the everyday drivability of an open differential with the extreme traction capability of a fully locked spool when you need it most.

Designed specifically for Jeep Wrangler JK rear Dana 44 applications and other Dana 44-equipped vehicles, this differential carrier features precision-engineered components built to withstand the demands of off-road and recreational driving. The electronic actuation provides superior reliability compared to air-actuated lockers, with no compressed air system required.