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Allstar Performance

Allstar Performance Crank Adapter Sleeves ALL26121 Flexplate Adapter, Steel, Black, Chevy, Each

SKU: AAFALL26121

Crankshaft Adapter Sleeves
Allstar Performance Crank Adapter Sleeves ALL26121 Flexplate Adapter, Steel, Black, Chevy, Each

Allstar Performance

Allstar Performance Crank Adapter Sleeves ALL26121 Flexplate Adapter, Steel, Black, Chevy, Each

SKU: AAFALL26121

Crankshaft Adapter Sleeves
A$56.91
IN STOCK! Est Ship 4-7 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

Allstar Performance crank adapter sleeves are designed to allow use of a TH350/TH400 transmission and curved flexplate with a GM LS engine. They're easy to use. Simply insert the adapter sleeve into the crankshaft end to center the torque converter pilot with the crankshaft. The adapter sleeves are manufactured from high-quality steel and are finished in black. For racing, rodding, and street performance parts—choose Allstar!

Additional Information

Requires Flexplate with early style GM torque convertor pattern. (flexplate PQX1834620)

Part Type

Crank Adapter LS to Older GM Converters

Data: v4.2 - Upd: 2026-10-14 22:07:17

Specifications

Product Attributes - Brand
Allstar Performance
Product Attributes - Manufacturer's Part Number
ALL26121
Product Attributes - Part Type
Crankshaft Adapter Sleeves
Product Attributes - Product Line
Allstar Performance Crank Adapter Sleeves
Product Attributes - UPC
848238077339
Product Attributes - Crankshaft Adapter Sleeve Material
Steel
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Crank adapter sleeve allows use of a TH350/TH400 transmission and curved flexplate with a GM LS engine.

Reference Information

Brand Name/s Allstar Performance
StreetFX SKU aafALL26121
SFX Item ID 4772527
Supplier Item Code 4772527
Manufacturer SKU ALL26121
Manufacturer UPC 848238077339

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM350
  • MakeCHEVROLET
    Beginning Year1997
    Ending Year2004
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM400
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2014
    Engine TypeV8
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM350
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2014
    Engine TypeV8
    Engine Size5.3L/325
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM400
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine Size4.8L/294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM350
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2017
    Engine TypeV8
    Engine Size4.8L/294
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM400
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2019
    Engine TypeV8
    Engine Size6.0L/364
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM350
  • MakeCHEVROLET
    Beginning Year1999
    Ending Year2019
    Engine TypeV8
    Engine Size6.0L/364
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM400
  • MakeCHEVROLET
    Beginning Year2006
    Ending Year2015
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM350
  • MakeCHEVROLET
    Beginning Year2006
    Ending Year2015
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM400
  • MakeCHEVROLET
    Beginning Year2008
    Ending Year2017
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM350
  • MakeCHEVROLET
    Beginning Year2008
    Ending Year2017
    Engine TypeV8
    Engine Size6.2L/376
    Engine FamilyChevy small block Gen III/IV (LS-based engines)
    TransmissionAutomatic
    Transmission Manufacturer CodeTHM400

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