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Dana 44 Eaton E-Locker (4 Pinion) - 30 Spline (3.73 & Down)

Sku: EAT19977-010

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Part Number: EAT19977-010
Brand: Eaton

This Dana 44 Eaton E-Locker is the new and stronger 4 pinion design that replaces the previous generation 2 pinion design. The Eaton ELocker is a highly engineered unit that allows for maximum driveline flexibility. Users can switch from a fully-open to 100%-locked axle at the touch of a button. The Eaton ELocker is designed to handle even the most extreme off-roading as well as a variety of other uses including rock crawling, towing and high performance vehicles. Its smooth engagement and increased strength make it an ideal solution for improved traction and maneuverability. Units are available for both front and rear axle installation.

Tech Note: This differential fits 3.73 and numerically lower gears or 3.92 and higher "thick" gears.

Model:19977-010, replaces model 19695-010

Application Axle Shafts Gear Ratio Tech Notes
Dana 44 30 Spline 3.73 & Down Compatible with 3.92 & higher “thick” gears.
Drilled for 3/8” and 1/2” ring gear bolts.



Optional Next Generation Rear 40 Spline Assembly.18 months of design, engineering and testing, resulted in the industries strongest 40 spline rear assembly. The design completed rigorous FEA testing and analysis.
- Forged chromolyspindles, hubs, and axle shafts
- Forged spindles have 4x more yield strengththan 35 spline spindles
- Hubs with over 80,000 psi yield strength to match the spindles
- Tone rings integrated into the hub
- Forged 4340 chromoly 40 spline axle shafts that are 55% strongerthan 4340 35 spline axle shafts


Fusion Elite Kingpin 60 Front Axle Standard Features:

  • 72" width for ideal steering geometry and tire clearance when running 40" tires. Other width available or call for custom width.
  • High clearance center section with custom low profile fabricated differential cover
  • Genuine Made in the USA Spicer® 10.1" (256 mm) ring and pinion gear
  • 3.5" diameter x 7/16" wall axle tubes
  • Lifetime Warranty US Made Chromoly axle shafts with 1480 solid u-joints
  • Massive, race inspired Kingpin inner knuckle Cs and outer knuckles, no ball joints to wear out
  • Fully machined springless steering arm attached with 6 ARP Studs
  • Steering arm upgrades available for full hydro or virtually any application
  • 1/4" plate axle bracketry designed to be the strongest in its class
  • 8 x 6.5 bolt pattern
  • Massive 13.25" brake rotors and dual piston calipers
  • Yukon Hardcore locking hubs

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