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Close-up of net-forged gears and locking mechanism
Eaton ELocker differential full view
Dash-mounted switch for locking control
Click to zoom in

Eaton ELocker Differential 31 Spline 1.32in Axle Shaft Diameter

Eaton
EAT19660-010
Differentials
1 Units In Stock - Ships Next Business Day
$ 1,686.17 $ 1,584.99
$ 1,584.99

SKU: 19660-010

Eaton ELocker Electronic Selectable Differential 31 Spline 1.32" Axle Shaft Diameter for Ford 8.8" Rear

The Eaton ELocker Differential is the best electronic selectable locking differential for drivers who need traction on-demand. At the flip of a dash-mounted switch, you can instantly go from a standard open differential to 100% locked for maximum traction. A second flip returns the unit to open mode for normal driving. Designed specifically for Ford 8.8" rear axles with 31 spline axles and 1.32" axle shaft diameter, this unit features net-forged gears for added strength and is the most reliable on-demand locker available. Perfect for off-road, towing, rock crawling, or any situation where you need full lockup when it counts.

Key Features

  • Selectable On-Demand Locking: Switch from open to 100% locked at the flip of a dash switch
  • Net-Forged Gears: Superior strength and durability for high torque applications
  • Electronic Actuation: Reliable, fast, and easy operation with no cables or air lines
  • Direct Replacement Design: Drops into your factory Ford 8.8" carrier for simple installation
  • Proven Reliability: Trusted by off-road enthusiasts, racers, and professional builders worldwide

Specifications

Specification Detail
Part Number 19660-010
Differential Type Electronic Selectable Locker (ELocker)
Axle Spline Count 31 Spline
Axle Shaft Diameter 1.32 inches
Rear Axle Housing Ford 8.8 inch
Operation Open to 100% Locked via Dash Switch
Compatibility All gear ratios
Country of Origin United States
Warranty Limited (Eaton)
Shipping Weight Approx. 45 to 55 lbs

What's Included

  • One Complete Eaton ELocker Differential Assembly
  • Installation Instructions

Product Notes

  • For Ford 8.8" rear axle ONLY with 31 spline axles and 1.32" axle shaft diameter
  • Dash-mounted switch and wiring harness required (sold separately or available in kits)
  • Professional installation highly recommended differential work requires specialized tools and expertise

Installation Notes

  • Estimated time: 6 to 10 hours, advanced difficulty
  • Requires full differential disassembly and reassembly
  • Professional shop with proper tools and experience strongly recommended
  • After installation, test switch operation and check for proper locking function

This Part Fits

Year Range Make Model Notes
1983-2014 Ford F-150 (all trims) 8.8" rear, 31 spline, all ratios
1983-1996 Ford F-250 / Bronco (all trims) 8.8" rear, 31 spline, all ratios
1986-1997 Ford Aerostar (all trims) 8.8" rear, 31 spline, all ratios
1991-2010 Ford Explorer (all trims) 8.8" rear, 31 spline, all ratios
1984-2011 Ford E-150 / E-250 / E-350 (all trims) 8.8" rear, 31 spline, all ratios
1997-2010 Ford Expedition (all trims) 8.8" rear, 31 spline, all ratios
2001-2011 Ford Crown Victoria / Grand Marquis (all trims) 8.8" rear, 31 spline, all ratios
2005-2010 Ford F-150 Heritage / Lightning / SVT 8.8" rear, 31 spline, all ratios

Why Choose Eaton ELocker?

  • True on-demand 100% locking differential at the flip of a switch
  • Net-forged gears deliver unmatched strength and durability
  • Most reliable electronic locker on the market no air lines or compressors needed

Frequently Asked Questions

  • Q: Will this ELocker fit my 2005 Ford F-150 with 8.8" rear?
    A: Yes, if your truck has 31 spline axles and 1.32" axle shaft diameter.
  • Q: Do I need anything else to make it work?
    A: Yes, a dash-mounted switch and wiring are required (sold separately).
  • Q: Is professional installation required?
    A: Highly recommended differential installation is advanced work.
  • Q: What is the warranty?
    A: Covered by Eaton limited warranty built for performance.

Shipping & Handling

  • Method: UPS / FedEx Ground (Oversize)
  • Availability: In stock ships same or next business day
  • Packaging: Secure protective packaging
  • Weight: Approx. 45 to 55 lbs

Request For Information

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