Differential Assembly: Application and ID

Vehicle Certification (VC) Label Example
The vehicle certification (VC) label is located in the driver door jamb. The first two digits of the axle code indicate the rear axle and the third digit refers to the front axle, if so equipped.

Axle Codes
The following lists the gear ratios on axles.
^ 41-3.27 non-limited slip
^ 45-3.55 non-limited slip
^ 46-3.73 non-limited slip
^ 42-4.10 non-limited slip
^ D 1-3.27 limited slip
^ D 5-3.55 limited slip
^ D 4-3.73 limited slip
^ D 2-4.10 limited slip






Front Axle Identification Tag
A manufacturing date code and a complete part number is stamped on the left carrier arm between the fill plug and axle end. A metal axle identification tag is attached to the differential by a housing cover bolt.





Rear Axle Identification Tag








Axle Identification Tag Denoting Interchangeability Affected Internally

CAUTION: The axle identification tag is the official service identifier. Do not damage the tag. Always reinstall the tag after removing it for axle inspection/repair.

The axle identification tag identifies a particular axle design, a specific ratio, and if it is a conventional or limited slip (Traction-Lok(r)) type. In addition, the plant code will not change as tong as that particular axle assembly never undergoes an external design change. If, however, an internal design change takes place during the production life of the axle and that internal change affects parts interchangeability, a dash and numerical suffix is added to the plant code. This means that as an assembly both axles are interchangeable; however, internally they are different. Therefore, each requires different internal parts at the time of repair.