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Powertrax 1920-LR

Automatic Positive Locking Differential GM 8.5"

Powertrax 1920-LR

754-1920-LR

made in usa
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Powertrax 1920-LR Automatic Positive Locking Differential GM 8.5" $332.99
Automatic Positive Locking Differential
  • GM 8.5"
  • 28-Spline

  • Powertrax 1920-LR Details

    GM

  • Brute Force Devices For Rugged Applications
  • Best Value For Greatly Increased Traction
  • Complete Replacement Of Diff. Case Not Req.
  • Simple Installation
  • Ring And Pinion Setup Not Altered
  • Installs Easily In Front/Rear Or Both
  • Proven In Most Demanding Applications

  • Specifications:

    Spline Count
    28
    Differential Case Design Type
    GM 8.5
    Axle Shaft Spline Quantity
    28
    Aftermarket Carrier Style
    Locker
    Carrier Material
    Steel
    Cover Bolts
    10
    Quantity
    Sold individually
    Manufacturer's Part Number:
    1920-LR

    Extreme 4x4 Performance or 4x4 Output from a 4x2

    This revolutionary design replaces differential spider gears with a coupler gear set that dramatically increases traction. With spider gear differentials, the wheel that has the least amount of traction typically gets full power, which isn't good for a stuck truck. Lock Right Differentials send power to the wheel that has the most traction, enabling escape from almost any situation. Installation time is about an hour; no special tools or setup required because the ring and pinion gears are unaffected.

    Note: Installs in open carriers only

    Does Powertrax 1920-LR fit your vehicle?

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    1971 CHEVROLET CAPRICE

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 PONTIAC LEMANS

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1972 CHEVROLET KINGSWOOD

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1983 BUICK REGAL

    • Liter: 5.7
    • SubModel: LIMITED
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • SubModel: MALIBU
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1982 GMC JIMMY

    • Fitment_Note: w/Beam Axle~w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • SubModel: HIGH SIERRA
    • EngineType: ALL

    1987 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: GYPSY

    1976 OLDSMOBILE OMEGA

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1971-1973 BUICK CENTURION

    • EngineType: ALL
    • SubModel: ALL

    1974 OLDSMOBILE CUTLASS SUPREME

    • CC: 4097
    • Liter: 4.1
    • SubModel: CRUISER
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1976 GMC K15 SUBURBAN

    • Fitment_Note: w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    2009-2011 CHEVROLET EXPRESS 1500

    • EngineType: ALL
    • SubModel: ALL

    1973 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: DELUXE
    • Engine Vin: T
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1986 PONTIAC PARISIENNE

    • Liter: 4.3
    • SubModel: BROUGHAM
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1980 CHEVROLET K10 PICKUP

    • Liter: 7.4
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: W
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 CHEVROLET EL CAMINO

    • CC: 7441
    • Liter: 7.4
    • SubModel: CUSTOM
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1985 CHEVROLET K10 SUBURBAN

    • Fitment_Note: w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • SubModel: SCOTTSDALE
    • EngineType: ALL

    1972 PONTIAC CATALINA

    • CC: 6556
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BROUGHAM
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 CHEVROLET MONTE CARLO

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1987-1989 PONTIAC SAFARI

    • EngineType: ALL
    • SubModel: ALL

    1982-1983 BUICK REGAL

    • Liter: 5.7
    • SubModel: ESTATE WAGON
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC GRAND PRIX

    • Liter: 6.6
    • SubModel: LJ
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1994 CHEVROLET C2500 PICKUP

    • CC: 5735
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET BISCAYNE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 GMC K25 SUBURBAN

    • Liter: 6.6
    • SubModel: HIGH SIERRA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1991-1999 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1980 CHEVROLET K10 PICKUP

    • CC: 4097
    • Fitment_Note: w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • Liter: 4.1
    • SubModel: SILVERADO
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1974 PONTIAC PARISIENNE

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1976 GMC K25 SUBURBAN

    • Fitment_Note: w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1995-2002 GMC SAFARI

    • EngineType: ALL
    • SubModel: SL

    1978 GMC C25 SUBURBAN

    • Liter: 7.4
    • SubModel: SIERRA CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 CHEVROLET MALIBU

    • Liter: 3.3
    • SubModel: BASE
    • CUI: 200
    • EngineType: V6 ( 3.3 L / 200 )

    1975 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LT

    1976 CHEVROLET IMPALA

    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: LANDAU

    1977 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC SPORT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1998 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: WT

    1970 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    2012 GMC SAVANA 1500

    • EngineType: ALL
    • SubModel: SL

    1973 CHEVROLET EL CAMINO

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972-1974 PONTIAC CATALINA

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: 300 DELUXE

    1990-1992 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1979-1984 GMC C2500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1974 PONTIAC VENTURA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1988-1997 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: ALL

    1974 CHEVROLET K20 SUBURBAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1973-1974 CHEVROLET MALIBU

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 PONTIAC BONNEVILLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980 CHEVROLET K20 SUBURBAN

    • Fitment_Note: w/Beam Axle~w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1982 CHEVROLET G20 VAN

    • EngineType: ALL
    • SubModel: BEAUVILLE

    2009-2010 GMC SAVANA 1500

    • EngineType: ALL
    • SubModel: LS

    1973 CHEVROLET MONTE CARLO

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET EL CAMINO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1981-1982 CHEVROLET K10 PICKUP

    • Fitment_Note: w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • SubModel: SILVERADO
    • EngineType: ALL

    1993 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC LTZ

    1970 PONTIAC PARISIENNE

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1990-1991 CHEVROLET K2500 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1970 CHEVROLET CAPRICE

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    2003-2005 CHEVROLET EXPRESS 1500

    • CC: 5328
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 325
    • EngineType: V8 ( 5.3 L / 325 )

    1978 GMC C25 SUBURBAN

    • Liter: 7.4
    • SubModel: HIGH SIERRA
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979-1980 CHEVROLET MALIBU

    • Liter: 4.4
    • SubModel: SPORT
    • CUI: 267
    • EngineType: V8 ( 4.4 L / 267 )

    1979 CHEVROLET CAPRICE

    • CC: 4097
    • Liter: 4.1
    • SubModel: CLASSIC
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CONCOURS ESTATE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 CHEVROLET K10 PICKUP

    • Fitment_Note: w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2000-2004 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: LS

    1978 GMC K15 SUBURBAN

    • Fitment_Note: w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • Liter: 5.0
    • SubModel: SIERRA GRANDE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 PONTIAC CATALINA

    • Liter: 3.8
    • SubModel: BASE
    • CUI: 229
    • EngineType: V6 ( 3.8 L / 229 )

    1973 GMC C25/C2500 SUBURBAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1979-1980 CHEVROLET K20 PICKUP

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1973 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: RS
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1977 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: SPORT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1992-1993 CHEVROLET C2500 PICKUP

    • CC: 5735
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 CHEVROLET NOVA

    • CC: 5031
    • Liter: 5.0
    • SubModel: CONCOURS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1965 PONTIAC CATALINA

    • EngineType: ALL
    • SubModel: BASE

    1977 OLDSMOBILE CUTLASS SUPREME

    • Liter: 6.6
    • SubModel: BROUGHAM
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1979-1982 CHEVROLET G20 VAN

    • EngineType: ALL
    • SubModel: SPORTVAN

    1968 OLDSMOBILE DELMONT 88

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1996-2008 GMC SAVANA 1500

    • EngineType: ALL
    • SubModel: ALL

    1977 CHEVROLET MALIBU

    • Liter: 5.7
    • SubModel: SPORT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 OLDSMOBILE CUTLASS

    • Liter: 6.6
    • SubModel: COLONNADE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1987 GMC V1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1973-1974 PONTIAC VENTURA

    • CC: 4098
    • Liter: 4.1
    • SubModel: CUSTOM
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1980 CHEVROLET K10 PICKUP

    • Liter: 6.6
    • Aspiration: N
    • SubModel: CHEYENNE
    • Engine Vin: R
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975 CHEVROLET MONTE CARLO

    • Liter: 7.4
    • SubModel: S
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1997 CHEVROLET C2500 PICKUP

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973-1974 CHEVROLET MALIBU

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: T
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2000-2004 CHEVROLET TAHOE

    • EngineType: ALL
    • SubModel: LS

    1973-1974 OLDSMOBILE OMEGA

    • EngineType: ALL
    • SubModel: ALL

    1997 CHEVROLET C2500 PICKUP

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1981 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: HIGH SIERRA

    1985 CHEVROLET BLAZER K5

    • Fitment_Note: w/Beam Axle~w/Locking Hubs Or Front Axle Disconnect; w/o Full Time 4WD~Do Not Operate On Highway w/Front Hubs Locked And 4WD Engaged
    • SubModel: SILVERADO
    • EngineType: ALL

    1970 CHEVROLET CORVETTE

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 CHEVROLET MALIBU

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1995 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA SLS

    1972-1974 CHEVROLET BEL AIR

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 CHEVROLET NOVA

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 262
    • EngineType: V8 ( 4.3 L / 262 )
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