Axle Identification
WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
The axle ratio may be verified by checking the printed label on the axle housing. If worn or not visible, the VIN can be typed in the service parts ordering system or the VC label may be used to correctly identify the axle and ratio. Refer to the chart below.
| Axle Tag Code | Ring Gear | Axle Ratio |
|---|---|---|
| S530 | 9.75 | 3.73 |
| S531 | 9.75 | 3L73 |
| S532 | 9.75 | 3.31 |
| S556 | 9.75 | 4.10 |
3L73 refers to 3.73 gear ratio with limited slip.
The VC label is located in the driver door jamb. The first 2 digits of the axle code indicate the rear axle and the third digit refers to the front axle, if equipped. Refer to Identification Codes .