Gear Set Identification
WARNING: This page is about a different car, the 2004 Ford F550 Super Duty and 2004 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- The trademark shows the company logo, and identifies the location of the manufacturing facility.
- A corresponding number marked on the differential ring gear and pinion identifies them as a matched set.
- The number of teeth on the pinion and the number of teeth on the differential ring gear result in gear ratio. A tooth combination of 41-11, for example, would indicate that the pinion has 11 teeth and the ring gear has 41 teeth that results in a 3.73:1 ratio.
CAUTION:
Never mate a differential ring gear and pinion together that does not have the same matched set numbers. Always install a new matched set if discarding either the differential ring gear or the pinion.