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Eaton Posi Differential 30 Spline 1.32in Axle Shaft Diameter 2.73 & Up Ratio Fr/Rr 8.5in / Rr 8.6in

SKU: EAT19559-010

Differential Carriers

EAT Posi Diffs...

Eaton Posi Differential 30 Spline 1.32in Axle Shaft Diameter 2.73 & Up Ratio Fr/Rr 8.5in / Rr 8.6in

SKU: EAT19559-010

Differential Carriers

EAT Posi Diffs...

A$1,427.26
LOW STOCK! Est Ship 3-5 days. HURRY! LOW STOCK. This item is in limited stock at one of our 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 - 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.
Product Attributes - Quantity
Sold individually.
Product Attributes - Part Type
Differential Carriers
Product Attributes - Cover Bolts
10
Product Attributes - Product Line
Eaton Posi Performance Differentials
Product Attributes - Carrier Material
Steel
Product Attributes - Manufacturer of Axle
GM
Product Attributes - Aftermarket Carrier Style
Clutch-type
Product Attributes - Carrier Bearings Included
No
Product Attributes - Axle Shaft Spline Quantity
30
Product Attributes - Manufacturer's Part Number
19559-010
Product Attributes - Differential Case Design Type
GM 8.5/8.6 in.

Reference Information

Brand Name/s Eaton
StreetFX SKU eat19559-010
SFX Item ID 4500303
Supplier Item Code 4500303
Manufacturer SKU 19559-010
Manufacturer UPC N/A
Alternative References etn-19559-010, 1.32in, 8.5in, 8.6in

Brochures

Compatibility

Application Data
  • MakeBUICK
    Beginning Year1988
    Ending Year1996
    Axle LocationRear
  • MakeCHEVROLET
    Beginning Year1988
    Ending Year1991
    Axle LocationFront
    Application NotesManual locking hubs are recommended for 1988-91 2500 series models.
  • MakeCHEVROLET
    Beginning Year1988
    Ending Year1996
    Axle LocationRear
  • MakeCHEVROLET
    Beginning Year1998
    Ending Year2009
    Axle LocationRear
  • MakeGMC
    Beginning Year1988
    Ending Year1991
    Axle LocationFront
    Application NotesManual locking hubs are recommended for 1988-91 2500 series models.
  • MakeGMC
    Beginning Year1988
    Ending Year1996
    Axle LocationRear
  • MakeGMC
    Beginning Year1998
    Ending Year2009
    Axle LocationRear
  • MakeHUMMER
    Beginning Year2006
    Ending Year2009
    Axle LocationRear
  • MakeOLDSMOBILE
    Beginning Year1988
    Ending Year1996
    Axle LocationRear
  • MakePONTIAC
    Beginning Year1988
    Ending Year1996
    Axle LocationRear
  • MakeSAAB
    Beginning Year2005
    Ending Year2007
    Axle LocationRear
    Application NotesFits 2005.5 to 2007 applications.

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