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Eaton Posi Differential 17 Spline 3.90 & Down Ring Gear Pinion Ratio Rear 8.2in

SKU: EAT19686-010

Differential Carriers

EAT Posi Diffs...

Eaton Posi Differential 17 Spline 3.90 & Down Ring Gear Pinion Ratio Rear 8.2in

SKU: EAT19686-010

Differential Carriers

EAT Posi Diffs...

A$1,554.87
Limited Availability from MFR Limited stock available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical orders of this part. This item is not held in our own warehouse, and availability and release timing may vary depending on manufacturer stock movements and processing 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: 2026-10-13 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
19686-010
Product Attributes - Part Type
Differential Carriers
Product Attributes - Product Line
Eaton Posi Performance Differentials
Product Attributes - UPC
840379306354
Product Attributes - Differential Case Design Type
GM 55P (8.2 in. Drop out)
Product Attributes - Remanufactured
No
Product Attributes - Aftermarket Carrier Style
Clutch-type
Product Attributes - Cover Bolts
10
Product Attributes - Axle Shaft Spline Quantity
17
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
Designed for 3.90 and numerically lower gear ratios. Factory housings containing open differentials requires require relief grinding for installation.

Reference Information

Brand Name/s Eaton
StreetFX SKU eat19686-010
SFX Item ID 4500313
Supplier Item Code 4500313
Manufacturer SKU 19686-010
Manufacturer UPC N/A
Alternative References ETN-19686-010, 8.2in

Brochures

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1955
    Ending Year1964
    Axle LocationRear
    Application NotesDesigned for 3.90 and numerically lower gear ratios. Factory housings containing open differentials requires require relief grinding for installation.
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1955
    Ending Year1957
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.3L/265
    Engine FamilyChevy small block Gen I
    Liter4.3
    CID265
    CC4343
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1955
    Ending Year1962
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.8L/235
    Engine FamilyGM inline 6-cylinder
    Liter3.8
    CID235
    CC3852
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1957
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Liter4.6
    CID283
    CC4638
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1958
    Ending Year1961
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/348
    Engine FamilyChevy big block W-engines
    Liter5.7
    CID348
    CC5704
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1959
    Ending Year1959
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.3L/322
    Engine FamilyBuick V8
    Liter5.3
    CID322
    CC5272
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1959
    Ending Year1960
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.3L/261
    Engine FamilyGM inline 6-cylinder
    Liter4.3
    CID261
    CC4278
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1960
    Ending Year1960
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.9L/236
    Engine FamilyGM inline 6-cylinder
    Liter3.9
    CID236
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1961
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size6.7L/409
    Engine FamilyChevy big block W-engines
    Liter6.7
    CID409
    CC6704
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1962
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.3L/327
    Engine FamilyChevy small block Gen I
    Liter5.3
    CID327
    CC5358
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1963
    Ending Year1963
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block W-engines
    Liter7.0
    CID427
    CC6997
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1963
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.8L/230
    Engine FamilyGM inline 6-cylinder
    Liter3.8
    CID230
    CC3769
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBEAUVILLE
    Beginning Year1955
    Ending Year1956
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.8L/235
    Engine FamilyGM inline 6-cylinder
    Liter3.8
    CID235
    CC3852
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBEAUVILLE
    Beginning Year1955
    Ending Year1956
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.3L/265
    Engine FamilyChevy small block Gen I
    Liter4.3
    CID265
    CC4343
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelNOMAD
    Beginning Year1955
    Ending Year1957
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.8L/235
    Engine FamilyGM inline 6-cylinder
    Liter3.8
    CID235
    CC3852
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelNOMAD
    Beginning Year1955
    Ending Year1957
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.3L/265
    Engine FamilyChevy small block Gen I
    Liter4.3
    CID265
    CC4343
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelNOMAD
    Beginning Year1957
    Ending Year1957
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Liter4.6
    CID283
    CC4638
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1958
    Ending Year1961
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/348
    Engine FamilyChevy big block W-engines
    Liter5.7
    CID348
    CC5704
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1958
    Ending Year1962
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.8L/235
    Engine FamilyGM inline 6-cylinder
    Liter3.8
    CID235
    CC3852
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1958
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.6L/283
    Engine FamilyChevy small block Gen I
    Liter4.6
    CID283
    CC4638
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1960
    Ending Year1960
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.9L/236
    Engine FamilyGM inline 6-cylinder
    Liter3.9
    CID236
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1961
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size6.7L/409
    Engine FamilyChevy big block W-engines
    Liter6.7
    CID409
    CC6704
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1962
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.3L/327
    Engine FamilyChevy small block Gen I
    Liter5.3
    CID327
    CC5358
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1963
    Ending Year1963
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block W-engines
    Liter7.0
    CID427
    CC6997
  • MakeCHEVROLET
    ModelBISCAYNE
    SubmodelBASE
    Beginning Year1963
    Ending Year1964
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size3.8L/230
    Engine FamilyGM inline 6-cylinder
    Liter3.8
    CID230
    CC3769

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