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Powertrax 1921-LR

Automatic Positive Locking Differential GM 8.5"

Powertrax 1921-LR

754-1921-LR

made in usa
jegs shipping
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Powertrax 1921-LR Automatic Positive Locking Differential GM 8.5" $339.99
Automatic Positive Locking Differential
  • GM 8.5"
  • 30-Spline

  • Powertrax 1921-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
    30
    Differential Case Design Type
    GM 8.5
    Axle Shaft Spline Quantity
    30
    Aftermarket Carrier Style
    Locker
    Carrier Material
    Steel
    Cover Bolts
    10
    Quantity
    Sold individually
    Manufacturer's Part Number:
    1921-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 1921-LR fit your vehicle?

    Narrow Results

    1990-1994 CHEVROLET C1500 PICKUP

    • EngineType: ALL
    • SubModel: WT

    1991-1994 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC

    1998-1999 GMC S15 JIMMY

    • SubModel: SL
    • EngineType: ALL

    1994-1995 CHEVROLET G20 VAN

    • Liter: 6.5
    • SubModel: SPORTVAN
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1993 GMC SONOMA

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

    1989 CHEVROLET V1500 SUBURBAN

    • Fitment_Note: w/Beam Axle
    • SubModel: ALL
    • EngineType: ALL

    1990-1993 GMC G15/G1500 VAN

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

    1999-2001 CHEVROLET S10 BLAZER

    • SubModel: LT
    • EngineType: ALL

    1992 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: BASE

    1990-1994 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: RALLY STX

    1998 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    1999-2000 CADILLAC ESCALADE

    • EngineType: ALL
    • SubModel: ALL

    1994 CHEVROLET K1500 PICKUP

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

    1989-1991 GMC V2500 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
    • SubModel: ALL
    • EngineType: ALL

    1989 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: ALL

    1993-1994 GMC SONOMA

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

    1999 CHEVROLET C1500 SUBURBAN

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

    1997-1998 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    2000 CHEVROLET TAHOE

    • SubModel: LT
    • EngineType: ALL

    1994 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: SILVERADO SPORT

    1990-1995 GMC G25/G2500 VAN

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

    2000-2001 CHEVROLET S10 PICKUP

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

    1995-1999 CHEVROLET TAHOE

    • EngineType: ALL
    • SubModel: ALL

    1998-2001 CHEVROLET EXPRESS 1500

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

    1991 CHEVROLET BLAZER

    • 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: BASE
    • EngineType: ALL

    2000-2001 GMC S15 JIMMY

    • SubModel: DIAMOND EDITION
    • EngineType: ALL

    1990-1993 CHEVROLET G10 VAN

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

    1998-2001 GMC S15 JIMMY

    • SubModel: SLT
    • EngineType: ALL

    1990-1995 CHEVROLET G20 VAN

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

    1998 CHEVROLET S10 BLAZER (CANADIAN)

    • SubModel: ALL
    • EngineType: ALL

    1994 CHEVROLET K1500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1990-1994 CHEVROLET C1500 PICKUP

    • EngineType: ALL
    • SubModel: CHEYENNE

    2001 GMC SONOMA

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

    1993-1994 GMC K1500

    • EngineType: ALL
    • SubModel: ALL

    1994 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: BASE

    1993-1994 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC LS

    1995-1997 GMC SONOMA

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

    1989 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: ALL

    1990-1993 GMC G15/G1500 VAN

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

    1998 CHEVROLET C1500 PICKUP

    • EngineType: ALL
    • SubModel: WT

    1990-1995 GMC G25/G2500 VAN

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

    1989-1990 GMC K2500 PICKUP

    • Fitment_Note: w/Beam Axle
    • SubModel: SIERRA SLX
    • EngineType: ALL

    1991-1993 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: CLASSIC LTZ

    2001 GMC S15 JIMMY

    • SubModel: SL
    • EngineType: ALL

    1989-1993 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA

    1994 CHEVROLET C1500 PICKUP

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 395
    • EngineType: V8 ( 6.5 L / 395 )

    1990 CHEVROLET CAPRICE

    • EngineType: ALL
    • SubModel: ALL

    1998 GMC C3500 PICKUP

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

    1999-2001 CHEVROLET S10 BLAZER

    • SubModel: LS
    • EngineType: ALL

    1990-1995 CHEVROLET G20 VAN

    • EngineType: ALL
    • SubModel: CHEVY VAN

    1990-1992 CHEVROLET C1500 PICKUP

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1999 CHEVROLET C1500 SUBURBAN

    • EngineType: ALL
    • SubModel: LS

    1998-2000 GMC SONOMA

    • SubModel: SL
    • EngineType: ALL

    1989-1990 GMC K2500 PICKUP

    • Fitment_Note: w/Beam Axle
    • SubModel: SIERRA
    • EngineType: ALL

    1992-1999 CHEVROLET K1500 SUBURBAN

    • Fitment_Note: w/Beam Axle
    • SubModel: ALL
    • EngineType: ALL

    1993 GMC SONOMA

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

    1994 CHEVROLET C1500 PICKUP

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

    1989-1993 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA SLX

    1990-1993 CHEVROLET G20 VAN

    • Liter: 6.2
    • SubModel: SPORTVAN
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1994 CHEVROLET C1500 PICKUP

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

    1990-1995 GMC G25/G2500 VAN

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

    1991 CHEVROLET K2500 PICKUP

    • 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

    2000 CHEVROLET TAHOE

    • SubModel: LS
    • EngineType: ALL

    1994-1996 CHEVROLET IMPALA

    • Fitment_Note: w/o G-80
    • Liter: 5.7
    • SubModel: SS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1989-1992 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA SLE

    1996 CHEVROLET EXPRESS 2500

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

    1995-2001 GMC SONOMA

    • SubModel: SLS
    • EngineType: ALL

    1990-1993 GMC G25/G2500 VAN

    • Liter: 6.2
    • SubModel: RALLY
    • CUI: 379
    • EngineType: V8 ( 6.2 L / 379 )

    1989-1991 GMC R1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1994 GMC G15/G1500 VAN

    • EngineType: ALL
    • SubModel: RALLY

    1992-1994 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: SILVERADO

    2001 CHEVROLET EXPRESS 1500

    • EngineType: ALL
    • SubModel: LT

    2000 CHEVROLET TAHOE

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

    1995-1997 GMC SONOMA

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

    1991 CHEVROLET K2500 PICKUP

    • 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: SCOTTSDALE
    • EngineType: ALL

    1989-1992 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA

    1999 GMC S15 JIMMY

    • SubModel: ENVOY
    • EngineType: ALL

    1996-1997 CHEVROLET EXPRESS 1500

    • EngineType: ALL
    • SubModel: ALL

    2000 GMC S15 JIMMY

    • EngineType: ALL
    • SubModel: ENVOY

    1999 GMC S15 JIMMY

    • SubModel: ENVOY
    • EngineType: ALL

    1990-1991 GMC V1500 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
    • SubModel: ALL
    • EngineType: ALL

    1990 CHEVROLET K2500 PICKUP

    • 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: CHEYENNE
    • EngineType: ALL

    1996-1997 GMC YUKON

    • EngineType: ALL
    • SubModel: SL

    1990-1994 CHEVROLET C1500 PICKUP

    • EngineType: ALL
    • SubModel: SILVERADO

    1994-1996 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA SL

    1989 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1998-2001 GMC S15 JIMMY

    • SubModel: SLE
    • EngineType: ALL

    1998 GMC C3500 PICKUP

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

    1998 GMC C3500 PICKUP

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

    1994 CHEVROLET K1500 PICKUP

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

    1996 CHEVROLET EXPRESS 2500

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

    1996 CHEVROLET EXPRESS 2500

    • EngineType: ALL
    • SubModel: LS

    1995 GMC K1500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA SLS

    2001 CHEVROLET S10 BLAZER

    • SubModel: XTREME
    • EngineType: ALL

    1999-2001 CHEVROLET S10 BLAZER

    • EngineType: ALL
    • SubModel: TRAILBLAZER

    1991 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: SPORT

    2001 GMC SONOMA

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

    2000 CHEVROLET TAHOE

    • SubModel: LIMITED
    • EngineType: ALL

    1989 GMC V1500 SUBURBAN

    • Fitment_Note: w/Beam Axle
    • SubModel: ALL
    • EngineType: ALL

    1990-1995 CHEVROLET G10 VAN

    • EngineType: ALL
    • SubModel: BEAUVILLE
    1921-LR - Powertrax Lock Right Automatic Positive Locking Differentials is rated 5.0 out of 5 by 2.
    • y_2017, m_1, d_20, h_20
    • bvseo_bulk, prod_bvrr, vn_bulk_0.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_10001_10001_2077238, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_jegs
    Rated 5 out of 5 by from Works great The install was super easy and works just as advertised. Great product.
    Date published: 2014-11-02
    Rated 5 out of 5 by from The locker works great, like it much better than a limited slip. I might say some guys might not like the clicking when turning, for the return on total lock up, well worth it.
    Date published: 2016-12-20
    • y_2017, m_1, d_20, h_20
    • bvseo_bulk, prod_bvrr, vn_bulk_0.0
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_10001_10001_2077238, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_jegs
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