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Powertrax 1931-LR

Automatic Positive Locking Differential GM 7-5/8"

Powertrax 1931-LR

754-1931-LR

made in usa
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Powertrax 1931-LR Automatic Positive Locking Differential GM 7-5/8" $405.19
Automatic Positive Locking Differential
  • GM 7-5/8"
  • 28-Spline

  • Powertrax 1931-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 7.625
    Axle Shaft Spline Quantity
    28
    Aftermarket Carrier Style
    Locker
    Carrier Material
    Steel
    Carrier Series
    3
    Cover Bolts
    10
    Quantity
    Sold individually
    Manufacturer's Part Number:
    1931-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 1931-LR fit your vehicle?

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    2005 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1982 PONTIAC GRAND PRIX

    • Liter: 4.1
    • SubModel: LJ
    • CUI: 252
    • EngineType: V6 ( 4.1 L / 252 )

    1991-1998 CHEVROLET S10 BLAZER

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: ALL
    • EngineType: ALL

    1992-1993 CHEVROLET S10 PICKUP

    • CC: 2474
    • Liter: 2.5
    • SubModel: EL
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1988 CHEVROLET S10 BLAZER

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 2.8
    • SubModel: SPORT
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    2001-2002 GMC SAFARI

    • EngineType: ALL
    • SubModel: SLT

    1993 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC LTZ

    1975-1976 CHEVROLET IMPALA

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

    1994 GMC SONOMA

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 4.3
    • SubModel: SL
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1988-1990 GMC S15 PICKUP

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 2.8
    • SubModel: HIGH SIERRA
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    2004-2005 GMC ENVOY XUV

    • EngineType: ALL
    • SubModel: ALL

    1985-1987 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1984 PONTIAC FIREBIRD

    • Liter: 2.8
    • SubModel: S/E
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1988 GMC S15 JIMMY

    • CC: 2474
    • Liter: 2.5
    • SubModel: SIERRA CLASSIC
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1983 PONTIAC FIREBIRD

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    2001 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: LT

    1990 CHEVROLET S10 BLAZER

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: TAHOE
    • EngineType: ALL

    1996 BUICK ROADMASTER

    • EngineType: ALL
    • SubModel: COLLECTORS EDITION

    1986-1989 GMC SAFARI

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

    1982-1983 CHEVROLET MALIBU

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

    1977-1979 CHEVROLET IMPALA

    • EngineType: ALL
    • SubModel: ALL

    1975-1976 CHEVROLET IMPALA

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

    1982-1983 CHEVROLET MALIBU

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

    1987-1993 PONTIAC FIREBIRD

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

    1980 PONTIAC GRAND PRIX

    • EngineType: ALL
    • SubModel: ALL

    1976 CHEVROLET IMPALA

    • EngineType: ALL
    • SubModel: BASE

    1991-1993 GMC SONOMA

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 2.8
    • SubModel: SLE
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1995-2000 GMC SAFARI

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: SL
    • EngineType: ALL

    1988-1990 GMC S15 PICKUP

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 2.8
    • SubModel: SIERRA CLASSIC
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1988-1990 CADILLAC BROUGHAM

    • EngineType: ALL
    • SubModel: ALL

    2002-2004 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: ALL

    1976 PONTIAC GRAND PRIX

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

    1979 PONTIAC GRAND PRIX

    • EngineType: ALL
    • SubModel: BASE

    1985 CHEVROLET CAPRICE

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

    1985-1987 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1984 PONTIAC FIREBIRD

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

    2000 GMC S15 JIMMY

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: SLE
    • EngineType: ALL

    1986 PONTIAC FIREBIRD

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1988 CHEVROLET S10 BLAZER

    • CC: 2474
    • Liter: 2.5
    • SubModel: TAHOE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1988 CHEVROLET S10 BLAZER

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 2.8
    • SubModel: TAHOE
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1994 CHEVROLET S10 PICKUP

    • CC: 2190
    • Liter: 2.2
    • SubModel: BASE
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1996 BUICK ROADMASTER

    • EngineType: ALL
    • SubModel: ESTATE WAGON COLLECTORS EDITION

    1987 CHEVROLET CAPRICE

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1994 GMC SONOMA

    • CC: 2190
    • Liter: 2.2
    • SubModel: SL
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1978 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: SPORT

    1973 CHEVROLET IMPALA

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

    2004 CHEVROLET S10 PICKUP

    • EngineType: ALL
    • SubModel: ZR5

    1981-1988 CHEVROLET MONTE CARLO

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

    1982-1984 CHEVROLET MONTE CARLO

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

    1982-1983 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1976 CHEVROLET IMPALA

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

    1990 CHEVROLET ASTRO

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 4.3
    • SubModel: CS
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1981-1984 CHEVROLET MONTE CARLO

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

    1989 PONTIAC FIREBIRD

    • CC: 3800
    • Liter: 3.8
    • SubModel: TRANS AM GTA SE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1993-2000 GMC SONOMA

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 4.3
    • SubModel: SLS
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1987 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: SIERRA CLASSIC

    1989-1997 GMC S15 JIMMY

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: ALL
    • EngineType: ALL

    1988-1992 CHEVROLET S10 PICKUP

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 2.8
    • SubModel: TAHOE
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1981 PONTIAC GRAND PRIX

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1991-1996 BUICK COMMERCIAL CHASSIS

    • EngineType: ALL
    • SubModel: ALL

    1980 CHEVROLET IMPALA

    • EngineType: ALL
    • SubModel: BASE

    1977 PONTIAC GRAND PRIX

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

    1998-2000 GMC S15 JIMMY

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: SLT
    • EngineType: ALL

    1982-1986 PONTIAC BONNEVILLE

    • EngineType: ALL
    • SubModel: ALL

    1988 CHEVROLET S10 BLAZER

    • CC: 2474
    • Liter: 2.5
    • SubModel: BASE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1998-2001 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: G
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1991-2000 GMC SAFARI

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: SLT
    • EngineType: ALL

    1985 GMC SAFARI

    • EngineType: ALL
    • SubModel: ALL

    1996-1998 CHEVROLET CAMARO

    • CC: 3800
    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 3.8
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    2001 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: DIAMOND EDITION

    1982 PONTIAC GRAND PRIX

    • CC: 3800
    • Liter: 3.8
    • SubModel: LJ
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    2001 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: SLE

    1982 PONTIAC GRAND PRIX

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1981-1983 CHEVROLET IMPALA

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

    1981 PONTIAC GRAND PRIX

    • CC: 3800
    • Liter: 3.8
    • SubModel: LJ
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1986 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC BROUGHAM

    1990 CHEVROLET ASTRO

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 4.3
    • SubModel: LT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1985 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: BASE

    1986-1987 PONTIAC FIREBIRD

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

    1988 GMC S15 JIMMY

    • CC: 2474
    • Liter: 2.5
    • SubModel: TIMBERLINE
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    2001-2004 GMC SONOMA

    • EngineType: ALL
    • SubModel: SLS

    1980 PONTIAC FIREBIRD

    • Liter: 4.3
    • SubModel: ESPRIT
    • CUI: 265
    • EngineType: V8 ( 4.3 L / 265 )

    1979 CHEVROLET MONTE CARLO

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1999-2000 CHEVROLET S10 BLAZER

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: TRAILBLAZER
    • EngineType: ALL

    1989 PONTIAC FIREBIRD

    • CC: 3800
    • Liter: 3.8
    • SubModel: TRANS AM
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    2001 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: TRAILBLAZER

    1995-2000 CHEVROLET S10 PICKUP

    • CC: 2190
    • Liter: 2.2
    • SubModel: BASE
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1986-1989 CHEVROLET ASTRO

    • EngineType: ALL
    • SubModel: BASE

    1987-1988 CHEVROLET CAPRICE

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

    1995-1997 GMC SONOMA

    • CC: 2190
    • Liter: 2.2
    • SubModel: SL
    • CUI: 134
    • EngineType: L4 ( 2.2 L / 134 )

    1985 CHEVROLET CAPRICE

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

    1980 CHEVROLET MONTE CARLO

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

    1990-1997 GMC SAFARI

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • SubModel: BASE
    • EngineType: ALL

    1981-1983 CHEVROLET IMPALA

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

    2005 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: SLS

    1983-1986 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: ALL

    1980 CHEVROLET MONTE CARLO

    • CC: 3800
    • Liter: 3.8
    • SubModel: SPORT
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1982 CHEVROLET CAPRICE

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

    2001 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: SLT

    1982 PONTIAC GRAND PRIX

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