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Eaton Posi Differential 30 Spline 1.30in Axle Shaft Diameter 3.73 & Up Ratio Rear 8.875in

SKU: EAT19556-010

Differential Carriers

EAT Posi Diffs...

Eaton Posi Differential 30 Spline 1.30in Axle Shaft Diameter 3.73 & Up Ratio Rear 8.875in

SKU: EAT19556-010

Differential Carriers

EAT Posi Diffs...

A$2,058.84
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

The Eaton Posi limited-slip differential is the perfect way to control traction in street rods, light duty pickups and all types of tarmac running race cars. Featuring pyrolytic carbon clutches, rebuildable design, net-forged gears for added strength and seamless, automatic operation.

Part Type

Differential Carriers

Data: v4.2 - Upd: 2026-10-13 20:42:28

Features

  • Clutch Type Limited Slip Differential
  • Precision-Forged Gears
  • Prevents Wheel Slip
  • Pyrolytic Carbon Clutch Disc Technology
  • Rebuildable
  • Smooth; Automatic Engagement
  • Tunable via various spring packs [a.k.a. pre-loads]

Specifications

Product Attributes - Brand
EATON
Product Attributes - Manufacturer's Part Number
19556-010
Product Attributes - Part Type
Differential Carriers
Product Attributes - Product Line
Eaton Posi Performance Differentials
Product Attributes - UPC
840379313963
Product Attributes - Differential Case Design Type
GM 8.875 in. (12-bolt), truck
Product Attributes - Remanufactured
No
Product Attributes - Aftermarket Carrier Style
Clutch-type
Product Attributes - Cover Bolts
12
Product Attributes - Carrier Series
4
Product Attributes - Axle Shaft Spline Quantity
30
Product Attributes - Manufacturer of Axle
GM
Product Attributes - Carrier Material
Steel
Product Attributes - Carrier Bearings Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
All Eaton differentials made for General Motors 8.5 in. and 8.6 in. axles require special bearings. For axles with small bearing bores (race O.D. or 2.89 in.) usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06 in.) usually found on vehicles from 1999 to present, bearing LM603049 and race LM603012 are required.

Reference Information

Brand Name/s Eaton
StreetFX SKU eat19556-010
SFX Item ID 4500301
Supplier Item Code 4500301
Manufacturer SKU 19556-010
Manufacturer UPC N/A
Alternative References ETN-19556-010, 1.30in, 8.875in

Brochures

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1964
    Ending Year1982
    Axle LocationRear
    Application NotesAll Eaton differentials made for General Motors 8.5 in. and 8.6 in. axles require special bearings. For axles with small bearing bores (race O.D. or 2.89 in.) usually found on vehicles prior to 1999, bearing LM102949 and race LM102911 are required. For axles with large bearing bores (race O.D. of 3.06 in.) usually found on vehicles from 1999 to present, bearing LM603049 and race LM603012 are required.
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1969
    Axle LocationRear
    Drivetrain4WD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeP
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1969
    Axle LocationRear
    Drivetrain4WD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1969
    Axle LocationRear
    Drivetrain4WD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeU
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1969
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeP
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1969
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1969
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeU
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1971
    Axle LocationRear
    Drivetrain4WD
    Engine TypeL6
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Liter4.8
    CID292
    CC4801
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1971
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Liter4.8
    CID292
    CC4801
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1972
    Axle LocationRear
    Drivetrain4WD
    Engine TypeL6
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Liter4.8
    CID292
    CC4801
    Engine VIN CodeS
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1972
    Axle LocationRear
    Drivetrain4WD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    Liter5.7
    CID350
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1972
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.8L/292
    Engine FamilyGM inline 6-cylinder
    Liter4.8
    CID292
    CC4801
    Engine VIN CodeS
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1969
    Ending Year1972
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyChevy small block Gen I
    Liter5.7
    CID350
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1970
    Axle LocationRear
    Drivetrain4WD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeA
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1970
    Axle LocationRear
    Drivetrain4WD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeB
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1970
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeA
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1970
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeB
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Axle LocationRear
    Drivetrain4WD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeN
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Axle LocationRear
    Drivetrain4WD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeS
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeN
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeS
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1971
    Ending Year1971
    Axle LocationRear
    Drivetrain4WD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeC
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1971
    Ending Year1971
    Axle LocationRear
    Drivetrain4WD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeL
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1971
    Ending Year1971
    Axle LocationRear
    Drivetrain4WD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeH
  • MakeCHEVROLET
    ModelBLAZER
    SubmodelBASE
    Beginning Year1971
    Ending Year1971
    Axle LocationRear
    Drivetrain4WD
    Engine TypeV8
    Engine Size5.0L/307
    Engine FamilyChevy small block Gen I
    Liter5.0
    CID307
    CC5031
    Engine VIN CodeP

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