Lock Right Locker

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

1920-LR Application Notes

  • For GM 8.5" (10 Bolt)
  • 28 Spline
  • For Open Differential

Warranty

2 Years or 100,000 Miles

1920-LR Specifications

Axle Shaft Diameter 1.2 (Inch)
Carrier Type Open
Differential Case Design Type GM 8.5
Ring Gear Bolt Quantity 10
Spline Quantity 28
Where to buy

Vehicle Applications

  • 1973 – 1975 Buick Apollo
  • 1971 – 1973 Buick Centurion
  • 1973 – 1977 Buick Century
  • 1971 – 1981 Buick Estate Wagon
  • 1971 – 1985 Buick LeSabre
  • 1973 – 1977 Buick Regal
  • 1984 – 1987 Buick Regal
  • 1977 – 1978 Buick Riviera
  • 1970 – 1972 Buick Skylark
  • 1975 – 1979 Buick Skylark
  • 1976 – 1979 Cadillac Seville
  • 1970 – 1975 Chevrolet Bel Air
  • 1964 – 1972 Chevrolet Biscayne
  • 1970 – 1972 Chevrolet Brookwood
  • 1977 – 1986 Chevrolet C10
  • 1977 – 1986 Chevrolet C10 Suburban
  • 1982 – 1986 Chevrolet C15
  • 1970 – 1981 Chevrolet Camaro
  • 1973 Chevrolet Chevelle
  • 1973 – 1977 Chevrolet El Camino
  • 1971 – 1985 Chevrolet Impala
  • 1977 – 1986 Chevrolet K10
  • 1977 – 1986 Chevrolet K10 Suburban
  • 1977 – 1986 Chevrolet K20
  • 1977 – 1986 Chevrolet K20 Suburban
  • 1975 – 1986 Chevrolet K5 Blazer
  • 1973 – 1977 Chevrolet Malibu
  • 1973 – 1977 Chevrolet Monte Carlo
  • 1971 – 1979 Chevrolet Nova
  • 1987 Chevrolet R10
  • 1987 Chevrolet R10 Suburban
  • 1987 Chevrolet Suburban
  • 1987 Chevrolet V10
  • 1987 Chevrolet V10 Suburban
  • 1987 Chevrolet V20
  • 1987 Chevrolet V20 Suburban
  • 1980 – 1982 Chrysler LaCrosse
  • 1979 – 1986 GMC C1500
  • 1979 – 1986 GMC C1500 Suburban
  • 1979 – 1987 GMC G1500
  • 1979 – 1987 GMC G2500
  • 1977 – 1978 GMC K15
  • 1977 – 1978 GMC K15 Suburban
  • 1979 – 1986 GMC K1500
  • 1979 – 1986 GMC K1500 Suburban
  • 1977 – 1978 GMC K25
  • 1977 – 1978 GMC K25 Suburban
  • 1979 – 1986 GMC K2500
  • 1979 – 1986 GMC K2500 Suburban
  • 1987 GMC R1500
  • 1987 GMC R1500 Suburban
  • 1973 – 1977 GMC Sprint
  • 1987 GMC V1500
  • 1987 GMC V1500 Suburban
  • 1987 GMC V2500
  • 1987 GMC V2500 Suburban
  • 1971 Oldsmobile 442
  • 1970 – 1984 Oldsmobile 98
  • 1970 – 1977 Oldsmobile Cutlass
  • 1985 – 1987 Oldsmobile Cutlass
  • 1978 – 1984 Oldsmobile Cutlass Calais
  • 1980 – 1983 Oldsmobile Cutlass Cruiser
  • 1975 – 1980 Oldsmobile Cutlass Salon
  • 1985 – 1987 Oldsmobile Cutlass Salon
  • 1970 – 1987 Oldsmobile Cutlass Supreme
  • 1971 – 1985 Oldsmobile Delta 88
  • 1971 – 1972 Oldsmobile F85
  • 1973 – 1979 Oldsmobile Omega
  • 1970 – 1975 Oldsmobile Vista Cruiser
  • 1971 – 1981 Pontiac Bonneville
  • 1987 Pontiac Bonneville
  • 1971 – 1981 Pontiac Catalina
  • 1971 – 1981 Pontiac Firebird
  • 1972 – 1973 Pontiac GTO
  • 1973 – 1975 Pontiac Grand Am
  • 1978 – 1980 Pontiac Grand Am
  • 1975 – 1977 Pontiac Grand LeMans
  • 1971 – 1977 Pontiac Grand Prix
  • 1971 – 1975 Pontiac Grandville
  • 1971 – 1972 Pontiac Laurentian
  • 1972 – 1977 Pontiac LeMans
  • 1976 – 1986 Pontiac Parisienne
  • 1977 – 1979 Pontiac Phoenix
  • 1971 – 1977 Pontiac Ventura
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov