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Eaton Posi Differential 28 Spline 1.20in Axle Shaft Diameter 2.73 & Up Ratio Front/Rear 8.5in

SKU: EAT19557-010

Differential Carriers

EAT Posi Diffs

Eaton Posi Differential 28 Spline 1.20in Axle Shaft Diameter 2.73 & Up Ratio Front/Rear 8.5in

SKU: EAT19557-010

Differential Carriers

EAT Posi Diffs

A$1,446.39
Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.
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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: 2026-10-06 19:23:05

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 - 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
28
Product Attributes - Manufacturer's Part Number
19557-010
Product Attributes - Differential Case Design Type
GM 8.5 in.

Reference Information

Brand Name/s Eaton
StreetFX SKU eat19557-010
SFX Item ID 4500302
Supplier Item Code 4500302
Manufacturer SKU 19557-010
Manufacturer UPC N/A
Alternative References etn-19557-010, 1.20in, 8.5in

Brochures

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1989
    Axle LocationRear
  • MakeCHEVROLET
    Beginning Year1977
    Ending Year1991
    Axle LocationFront
    Application NotesManual locking hubs are recommended for 1988-91 2500 series models.
  • MakeGMC
    Beginning Year1970
    Ending Year1989
    Axle LocationRear
  • MakeGMC
    Beginning Year1977
    Ending Year1991
    Axle LocationFront
    Application NotesManual locking hubs are recommended for 1988-91 2500 series models.

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