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Eaton Detroit Truetrac 37 Spline Differential Dana 80 916A566 Differential, Truetrac, 37-Spline, 80, 3.73:1+ Lower, Each

SKU: EAT916A566

Differential Carriers

Eaton Detroit Truetrac 37 Spline Differential Dana 80 916A566 Differential, Truetrac, 37-Spline, 80, 3.73:1+ Lower, Each

SKU: EAT916A566

Differential Carriers

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A$2,368.72 A$2,638.72
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Description

IMPORTANT NOTICE: Fits 3.73 ratio and numerically lower. Caution, some factory Ford 3.73 ring gears were machined thinner to fit on the 4 series carrier.

Eaton Detroit Truetrac differentials use a patented design of parallel-axis planetary helix gears to provide a quiet, automatic splitting of torque. They perform like a limited-slip differential under normal driving conditions, automatically transferring torque to the wheel with better traction when ground conditions warrant. These replacement units are available for dozens of axle applications.

Part Type

Differential Carriers

Data: v4.2 - Upd: 2026-10-14 09:19:28

Specifications

Product Attributes - Brand
EATON
Product Attributes - Manufacturer's Part Number
916A566
Product Attributes - Part Type
Differential Carriers
Product Attributes - Product Line
Eaton Detroit Truetrac Differentials
Product Attributes - UPC
840379327557
Product Attributes - Differential Case Design Type
Dana 80
Product Attributes - Remanufactured
No
Product Attributes - Aftermarket Carrier Style
Helical gear
Product Attributes - Cover Bolts
10
Product Attributes - Carrier Series
3
Product Attributes - Axle Shaft Spline Quantity
37
Product Attributes - Manufacturer of Axle
Dana
Product Attributes - Carrier Material
Steel
Product Attributes - Carrier Bearings Included
No
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Fits 3.73 ratio and numerically lower. Caution, some factory Ford 3.73 ring gears were machined thinner to fit on the 4 series carrier.
Product Attributes - Special Attention
Eaton recommends a petroleum/mineral based GL-5 80W90 gear oil for all Truetrac differentials. Do not use synthetic gear oil or friction modifiers.

Reference Information

Brand Name/s Eaton
StreetFX SKU eat916A566
SFX Item ID 5062990
Supplier Item Code 5062990
Manufacturer SKU 916A566
Manufacturer UPC 840379327557
Alternative References ETN-916A566, 37-Spline

Compatibility

Application Data
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C042
    Beginning Year2003
    Ending Year2004
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code1
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C042
    Beginning Year2003
    Ending Year2006
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C042
    Beginning Year2004
    Ending Year2007
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code2
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C042
    Beginning Year2006
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeG
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C042
    Beginning Year2007
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code9
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C044
    Beginning Year2005
    Ending Year2005
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C044
    Beginning Year2005
    Ending Year2007
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code2
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C044
    Beginning Year2006
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeG
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4C044
    Beginning Year2007
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code9
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E042
    Beginning Year2003
    Ending Year2004
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code1
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E042
    Beginning Year2003
    Ending Year2005
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E042
    Beginning Year2004
    Ending Year2007
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code2
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E042
    Beginning Year2006
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeG
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E042
    Beginning Year2007
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code9
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E044
    Beginning Year2005
    Ending Year2005
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E044
    Beginning Year2005
    Ending Year2007
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code2
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E044
    Beginning Year2006
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeG
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4E044
    Beginning Year2007
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 4
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code9
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4U042
    Beginning Year2003
    Ending Year2004
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code1
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4U042
    Beginning Year2003
    Ending Year2005
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeE
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4U042
    Beginning Year2004
    Ending Year2007
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code2
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4U042
    Beginning Year2006
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeG
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4U042
    Beginning Year2007
    Ending Year2009
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code9
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4V042
    Beginning Year2003
    Ending Year2004
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size6.6L/403
    Engine FamilyDURAMAX V8 DIESEL
    Liter6.6
    CID403
    CC6599
    Engine VIN Code1
  • MakeCHEVROLET
    ModelC4500 KODIAK
    SubmodelC4V042
    Beginning Year2003
    Ending Year2005
    Axle LocationRear
    Drivetrain4 X 2
    Engine TypeV8
    Engine Size8.1L/496
    Engine FamilyChevy big block Gen VII
    Liter8.1
    CID496
    Engine VIN CodeE

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