Ford Rear Axle Identification Tag Diagram - S825C 10.50 Ring Gear (A0027436)

This document is a Ford service illustration (reference number A0027436) showing the location and layout of an axle identification tag on a rear axle assembly. The upper portion of the drawing depicts the rear axle with its differential housing, with a leader line indicating that the identification tag is attached at the differential (typically under a cover bolt). The lower portion shows an enlarged view of the tag itself, which reads "S825C" on the top line and "3L55 10.50 1 F 21" on the bottom line. Seven numbered callouts (1 through 7) point to individual elements of the tag: the tag/model code S825C, the axle code 3L55 (indicated by two callouts), the ring gear size 10.50, and the characters 1, F, and 21. The illustration itself does not include a legend explaining what each callout represents, so the reader learns where the tag is located and how the stamped codes are arranged, but must consult accompanying service literature to decode each field. No year, model, or engine applicability is stated on the document itself.