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Eaton Detroit Locker Differential 28 Spline 1.20in Axle Shaft Dia 2.73-5.13 Ratio Front/Rear 8.5in

SKU: EAT187C149A

Differential Carriers

EAT Detroit Locker Diffs

Eaton Detroit Locker Differential 28 Spline 1.20in Axle Shaft Dia 2.73-5.13 Ratio Front/Rear 8.5in

SKU: EAT187C149A

Differential Carriers

EAT Detroit Locker Diffs

A$2,846.99
LAST ONE! Est Ship 4-7 days. LAST ONE! This is the last unit at our distribution centre. Contact us if you need more. The ETA is the approximate time required to prepare your order for dispatch.
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Description

IMPORTANT NOTICE: Designed for 1988 and earlier applications with 28-spline axles. Must use special large carrier bearings with 1.781 in. I.D. and 2.891 in. O.D. race. Bearing TMK-LM102949 and race TMK-LM102911 are required (See Recommended Parts tab). For use with 2.73 and numerically higher gear ratios.

The Detroit Locker is a 100% automatic locking differential that provides ultimate traction for mild to extreme vehicle applications. Its unique, bullet-proof design is engineered to keep both wheels in drive mode – even if one wheel is lifted off the ground. It works in forward and reverse, and features unmatched strength, 100 percent automatic locking, and maintenance-free parts.

Part Type

Differential Carriers

Data: v4.2 - Upd: 2026-10-09 19:36:20

Features

  • 100 pct. automatic locking - no driver action needed
  • Clutchless Maintenance Free Design
  • Provides Maximum Amount Of Traction To Both Wheel Ends
  • Works In Forward And Reverse

Specifications

Product Attributes - Brand
EATON
Product Attributes - Manufacturer's Part Number
187C149A
Product Attributes - Part Type
Differential Carriers
Product Attributes - Product Line
Eaton Detroit Lockers
Product Attributes - UPC
840379327083
Product Attributes - Differential Case Design Type
GM 8.5 in.
Product Attributes - Remanufactured
No
Product Attributes - Aftermarket Carrier Style
Mechanical locker
Product Attributes - Cover Bolts
10
Product Attributes - Axle Shaft Spline Quantity
28
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 1988 and earlier applications with 28-spline axles. Must use special large carrier bearings with 1.781 in. I.D. and 2.891 in. O.D. race. Bearing TMK-LM102949 and race TMK-LM102911 are required (See Recommended Parts tab). For use with 2.73 and numerically higher gear ratios.

Reference Information

Brand Name/s Eaton
StreetFX SKU eat187C149A
SFX Item ID 4500284
Supplier Item Code 4500284
Manufacturer SKU 187C149A
Manufacturer UPC N/A
Alternative References ETN-187C149A, 1.20in, 8.5in

Brochures

Compatibility

Application Data
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4097
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    CC4098
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.3L/260
    Engine FamilyOldsmobile V8
    Liter4.3
    CID260
    Engine VIN CodeF
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelBASE
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeJ
  • MakeBUICK
    ModelAPOLLO
    SubmodelSR
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeL6
    Engine Size4.1L/250
    Engine FamilyGM inline 6-cylinder
    Liter4.1
    CID250
    Engine VIN CodeD
  • MakeBUICK
    ModelAPOLLO
    SubmodelSR
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size4.3L/260
    Engine FamilyOldsmobile V8
    Liter4.3
    CID260
    Engine VIN CodeF
  • MakeBUICK
    ModelAPOLLO
    SubmodelSR
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeH
  • MakeBUICK
    ModelAPOLLO
    SubmodelSR
    Beginning Year1975
    Ending Year1975
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyOldsmobile V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeJ
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeH
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    CC5733
    Engine VIN CodeJ
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    Engine VIN CodeH
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size5.7L/350
    Engine FamilyBuick V8
    Liter5.7
    CID350
    Engine VIN CodeJ
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    Liter7.5
    CID455
    CC7456
    Engine VIN CodeT
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    Liter7.5
    CID455
    CC7456
    Engine VIN CodeU
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    Liter7.5
    CID455
    CC7456
    Engine VIN CodeV
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1973
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    Liter7.5
    CID455
    CC7456
    Engine VIN CodeW
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1974
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    Liter7.5
    CID455
    CC7456
    Engine VIN CodeP
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1974
    Ending Year1974
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV8
    Engine Size7.5L/455
    Engine FamilyBuick V8
    Liter7.5
    CID455
    CC7456
    Engine VIN CodeR
  • MakeBUICK
    ModelCENTURY
    SubmodelBASE
    Beginning Year1975
    Ending Year1977
    Axle LocationRear
    DrivetrainRWD
    Engine TypeV6
    Engine Size3.8L/231
    Engine FamilyGM V6
    Liter3.8
    CID231
    Engine VIN CodeC

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