Lock Right Locker

9050
9051

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

1240-LR Application Notes

  • For Chrysler 8.75" (489/741/742)
  • 30 Spline
  • For Open Differential
  • w/Removable Carrier

Warranty

2 Years or 100,000 Miles

1240-LR Specifications

Axle Shaft Diameter 1.28 (Inch)
Differential Case Design Type Chrysler 8.75
Ring Gear Bolt Quantity 12
Spline Quantity 30
Taxonomy A Differential LD
Taxonomy B Differential Lockers & Spools
Taxonomy C Chrysler 8.75
Taxonomy D Drop-in Lockers
Type Open
Where to buy

Vehicle Applications

  • 1957 – 1971 Chrysler 300
  • 1957 – 1973 Chrysler Imperial
  • 1957 – 1974 Chrysler New Yorker
  • 1957 – 1974 Chrysler Newport
  • 1957 – 1974 Chrysler Town & Country
  • 1964 – 1970 Dodge A100
  • 1964 – 1970 Dodge A100 Truck
  • 1971 – 1974 Dodge B100 Van
  • 1971 – 1974 Dodge B200 Van
  • 1970 – 1974 Dodge Challenger
  • 1966 – 1974 Dodge Charger
  • 1965 – 1973 Dodge Coronet
  • 1959 Dodge D100 Pickup
  • 1968 – 1974 Dodge D100 Pickup
  • 1960 – 1967 Dodge D100 Series
  • 1966 – 1972 Dodge Dart
  • 1965 – 1973 Dodge Monaco
  • 1964 Dodge P100 Van
  • 1967 – 1968 Dodge P100 Van
  • 1964 – 1970 Dodge P200
  • 1964 Dodge P200 Van
  • 1967 – 1968 Dodge P200 Van
  • 1962 – 1970 Dodge P300
  • 1964 Dodge P300 Van
  • 1966 – 1968 Dodge P300 Van
  • 1962 – 1973 Dodge Polara
  • 1969 – 1970 Dodge W100 Pickup
  • 1970 – 1974 Dodge W200 Pickup
  • 1964 – 1970 Fargo A100 Van
  • 1969 – 1972 Fargo D100 Pickup
  • 1969 – 1970 Fargo W100 Pickup
  • 1970 – 1972 Fargo W200 Pickup
  • 1965 – 1967 Humber Imperial
  • 1966 – 1974 Plymouth Barracuda
  • 1962 – 1974 Plymouth Fury
  • 1968 – 1974 Plymouth Fury I
  • 1965 – 1974 Plymouth Fury II
  • 1965 – 1974 Plymouth Fury III
  • 1967 – 1971 Plymouth GTX
  • 1972 – 1974 Plymouth Gran Fury
  • 1974 Plymouth PB100 Van
  • 1974 Plymouth PB200 Van
  • 1968 – 1974 Plymouth Road Runner
  • 1965 – 1974 Plymouth Satellite
  • 1967 Plymouth VIP
  • 1966 – 1972 Plymouth Valiant
  • 1972 – 1974 Pontiac Bristol
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov