GM Service Manual Online
For 1990-2009 cars only

Eaton® Rear Axle ID


Object Number: 200579  Size: SF
(1)Axle Specification Number
(2)Casting Number
(3)Rough Number
(4)Capacity
(5)Housing Subassembly Number (Including Tubes)

All axle housings have identification tags or identification information stamped near the side of the differential carrier.

Differential Carrier

The carrier tag may contain the following information:

    • The axle model
    • The ratio
    • The carrier assembly number
    • The carrier serial number
    • The date of assembly

Use all the information on the carrier tag in order to identify the axle assembly.

Eaton® Differential Carrier ID


Object Number: 200584  Size: SF
(1)Side View
(2)Top View

Dana/Spicer® Rear Axle Differential Carrier ID


Object Number: 200587  Size: SH
(1)Dana® Part Number
(2)Customer Part Number (Optional)
(3)Julian Date Code
(4)Line Set Number (Optional)
(5)Last Six Digits of Vehicle Serial Number (Optional)

Axle Housing

Dana/Spicer® Rear Axle ID


Object Number: 200582  Size: SH
(1)Dana® Part Number
(2)Customer Part Number (Optional)
(3)Model
(4)Julian Date Code
(5)Line Set Number (Optional)
(6)Last Six Digits of Vehicle Serial Number (Optional)

The housing tag is the same type of tag used for the Differential Carrier.