Lock Right Locker

9172
9173

Powertrax® Lock-Right performance lockers’ straight-line performance is equal to a solid spool axle, yet they automatically unlock during turns. When extreme traction output and high-strength are required, racers, hot-rodders and muscle car owners chose Lock-Right lockers!
Best suited for extreme off-road to severe on-road use, Powertrax lockers replace the spider gears in your differential carrier without affecting your ring and pinion settings. The whole job can be done in your driveway with common hand tools in a couple of hours. A carrier is not included.

  • Brute Force Devices For Rugged Applications
  • Replacement Of Differential Case Not Required
  • Ring And Pinion Setup Not Altered
  • Installs Easily In Front/Rear Or Both
  • Proven In Most Demanding Applications

1840-LR Application Notes

  • For Ford 10.25" (12 Bolt)
  • 35 Spline
  • For Open Differential
  • Full Float Only
  • Can Be Used In 10.5" If 3 Pinion Carrier Is Replaced With 2 Pinion Carrier (E7TZ4204C)

Warranty

2 Years or 100,000 Miles

1840-LR Specifications

Axle Shaft Diameter 1.5 (Inch)
Differential Case Design Type Ford 10.25
Ring Gear Bolt Quantity 12
Spline Quantity 35
Taxonomy A Differential LD
Taxonomy B Differential Lockers & Spools
Taxonomy C Ford 10.25
Taxonomy D Drop-in Lockers
Type Open
Where to buy

Vehicle Applications

  • 2003 – 2005 Ford E-250
  • 2007 – 2014 Ford E-250
  • 1985 – 2002 Ford E-250 Econoline
  • 1985 – 1991 Ford E-250 Econoline Club Wagon
  • 2003 – 2005 Ford E-350 Club Wagon
  • 1985 – 1998 Ford E-350 Econoline
  • 2000 Ford E-350 Econoline
  • 2007 – 2008 Ford E-350 Econoline
  • 1985 – 1998 Ford E-350 Econoline Club Wagon
  • 2000 – 2002 Ford E-350 Econoline Club Wagon
  • 1999 – 2015 Ford E-350 Super Duty
  • 2011 – 2015 Ford E-450 Super Duty
  • 2000 – 2005 Ford Excursion
  • 1988 – 1997 Ford F Super Duty
  • 2001 – 2013 Ford F-150
  • 2004 Ford F-150 Heritage
  • 1985 – 2009 Ford F-250
  • 1999 – 2015 Ford F-250 Super Duty
  • 1984 – 1997 Ford F-350
  • 1999 – 2009 Ford F-350
  • 1999 – 2015 Ford F-350 Super Duty
  • 2000 – 2004 Ford F-450 Super Duty
  • 1985 – 1988 Plymouth Pathfinder
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov