Memorial Day
800.345.4545
Call Our Support Line
24 Hours / 7 Days a Week!  
FREE SHIPPING!
Orders Over $100
Same Day Shipping Before 11 PM ET
0
My Cart
$0.00
Free Shipping on Orders Over $100
Shop By Vehicle
Shop By
Category
Close Menu
Top Categories
All Categories

Free Catalog
E-Mail Signup
My Account
Track Order
Gift Certificates
Rebates
Help

Powertrax 1931-LR

Automatic Positive Locking Differential GM 7-5/8"

Powertrax 1931-LR

754-1931-LR

made in usa
jegs shipping
FREE Shipping
Estimated ship date 05/30/17 if Ordered Today
Easy Returns
Lowest Price Guarantee
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?

    Narrow Results
    Filter By
    Year
    Filter By
    Make
    Filter By
    Model
    Filter By
    SubModel
    Filter By
    EngineType
    Filter By
    CC
    Filter By
    Liter
    Filter By
    Aspiration

    1976 CHEVROLET IMPALA

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

    2001-2002 GMC SAFARI

    • EngineType: ALL
    • SubModel: SLT

    1982-1983 CHEVROLET MALIBU

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

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

    1980 CHEVROLET MONTE CARLO

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

    1996-2004 OLDSMOBILE BRAVADA

    • EngineType: ALL
    • SubModel: ALL

    1981-1984 CHEVROLET MONTE CARLO

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

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

    1990-1992 PONTIAC FIREBIRD

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 3.1
    • SubModel: BASE
    • CUI: 189
    • EngineType: V6 ( 3.1 L / 189 )

    1990-1992 CHEVROLET CAMARO

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 3.1
    • SubModel: RS
    • CUI: 189
    • EngineType: V6 ( 3.1 L / 189 )

    1991 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: BAJA
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1981-1988 CHEVROLET MONTE CARLO

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

    2000 CHEVROLET S10 PICKUP

    • EngineType: E1 ( )
    • SubModel: BASE

    1986-1992 PONTIAC FIREBIRD

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

    1996 BUICK ROADMASTER

    • EngineType: ALL
    • SubModel: ESTATE WAGON COLLECTORS EDITION

    1984 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: ALL

    1988-1990 CHEVROLET S10 PICKUP

    • 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 )

    1983 CHEVROLET MONTE CARLO

    • EngineType: ALL
    • SubModel: CL

    1982-1983 CHEVROLET MONTE CARLO

    • Liter: 4.3
    • SubModel: BASE
    • CUI: 260
    • EngineType: V6 ( 4.3 L / 260 )

    1991 CHEVROLET S10 PICKUP

    • CC: 2474
    • Liter: 2.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 151
    • EngineType: L4 ( 2.5 L / 151 )

    1980 PONTIAC GRAND PRIX

    • EngineType: ALL
    • SubModel: ALL

    1989 CHEVROLET ASTRO

    • EngineType: ALL
    • SubModel: BASE

    1982-1983 CHEVROLET CAPRICE

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

    2001-2003 CHEVROLET S10 PICKUP

    • EngineType: ALL
    • SubModel: ZR2

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

    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

    1994-1996 CHEVROLET IMPALA

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

    1989 CHEVROLET ASTRO

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

    1988 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
    • Liter: 2.8
    • SubModel: GYPSY
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1982-1984 CHEVROLET MONTE CARLO

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

    2000-2002 CHEVROLET S10 PICKUP

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

    1996-1998 CHEVROLET S10 PICKUP

    • Liter: 4.3
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: W
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1985 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: ALL

    2004 CHEVROLET S10 PICKUP

    • EngineType: ALL
    • SubModel: ZR5

    1982 PONTIAC GRAND PRIX

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

    2002 PONTIAC FIREBIRD

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

    1987 CHEVROLET CAPRICE

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

    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 )

    1981-1983 CHEVROLET IMPALA

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

    1983-1986 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: ALL

    1998-2000 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: SL
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1983-1984 PONTIAC FIREBIRD

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

    1992-1993 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: EL
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1988-1990 CHEVROLET S10 PICKUP

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

    2001-2004 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: LS

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

    1988-1990 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: IROC-Z
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1974 CHEVROLET IMPALA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • 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 )

    1990 GMC S15 PICKUP

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

    1989 CHEVROLET CAMARO

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

    1980 CHEVROLET MONTE CARLO

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

    1995-2000 CHEVROLET S10 PICKUP

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

    1981 PONTIAC GRAND PRIX

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

    1988 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
    • Liter: 2.8
    • SubModel: BASE
    • CUI: 173
    • EngineType: V6 ( 2.8 L / 173 )

    1993-1995 PONTIAC FIREBIRD

    • Fitment_Note: For Carriers w/Equal Size Large Windows~w/Large Windows On One Side And A Small Oval Shape On Other Side
    • Liter: 3.4
    • SubModel: BASE
    • CUI: 207
    • EngineType: V6 ( 3.4 L / 207 )

    1982 PONTIAC GRAND PRIX

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

    1985-1987 CHEVROLET CAMARO

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

    1986-1988 CHEVROLET CAPRICE

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

    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

    1979 PONTIAC GRAND PRIX

    • Liter: 3.8
    • SubModel: SJ
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )

    1980 CHEVROLET MONTE CARLO

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

    1989-1992 PONTIAC FIREBIRD

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

    1985 CHEVROLET IMPALA

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

    1974 CHEVROLET IMPALA

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

    2004 GMC SONOMA

    • EngineType: ALL
    • SubModel: SL

    1993 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1988-1989 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: IROC-Z
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1981-1983 CHEVROLET IMPALA

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

    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

    1994 PONTIAC FIREBIRD

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

    1987 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: SIERRA CLASSIC

    2001 GMC SONOMA

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

    1986-1987 PONTIAC FIREBIRD

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

    1988-1989 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: 4.3
    • SubModel: SPORT
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1992 GMC SONOMA

    • EngineType: ALL
    • SubModel: GT

    1991-2000 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
    • SubModel: ALL
    • EngineType: ALL

    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: SLE
    • EngineType: ALL

    1988-1990 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: 4.3
    • SubModel: DURANGO
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1983-1984 PONTIAC FIREBIRD

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

    2003-2004 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: ZR2

    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: LT
    • EngineType: ALL

    1982-1986 CHEVROLET CAMARO

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

    2000-2002 CHEVROLET IMPALA

    • Liter: 3.4
    • SubModel: BASE
    • CUI: 207
    • EngineType: V6 ( 3.4 L / 207 )

    2010-2011 CHEVROLET CAMARO

    • Liter: 3.6
    • SubModel: LS
    • CUI: 217
    • EngineType: V6 ( 3.6 L / 217 )

    1999-2000 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

    1995-1996 CHEVROLET CAMARO

    • Liter: 5.7
    • Aspiration: N
    • SubModel: Z28
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976 CHEVROLET IMPALA

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

    1982-1983 CHEVROLET CAMARO

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

    1981 PONTIAC GRAND PRIX

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

    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 )

    1990 GMC S15 PICKUP

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

    1982-1984 CHEVROLET CAMARO

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

    1997-1998 CHEVROLET S10 PICKUP

    • EngineType: E1 ( )
    • SubModel: BASE

    1986 PONTIAC FIREBIRD

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

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

    2010-2011 CHEVROLET CAMARO

    • CC: 6162
    • Liter: 6.2
    • SubModel: SS
    • CUI: 376
    • EngineType: V8 ( 6.2 L / 376 )

    1995-2000 PONTIAC FIREBIRD

    • 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
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6 ( 3.8 L / 231 )
    Items You Need