Marine Corps · SSN history

908 Mechanic, Chassis, Track Vehicle

Appendix B identifies SSN 908 as “Mechanic, Chassis, Track Vehicle” under AR 615-26 of September 1942 and its supplements, and suggests SSNs 660 or 996 as possible replacements. These were alternatives requiring individual qualification review, not an automatic split or conversion.

Codes named in this history

Codes without a directory match

  • 660 stated by the source. No directory or archive record matches.
  • 996 stated by the source. No directory or archive record matches.

Documented history

Mechanic, Chassis, Track Vehicle

June 1945 is the manual’s publication date; no effective date is given for a change to SSN 908.

  • No June 1945 Present Title is listed for SSN 908.
  • The record does not establish which suggested specialty, if either, applied to an individual Marine.
Source extraction notes

Predecessor title from the AR 615-26 column: Mechanic, Chassis, Track Vehicle. Suggested conversions/remarks: 660, 996. The table gives no row-level effective date. June 1945 is the manual publication date, not an effective conversion date.

Source documents (1)

Reviewed September 24, 2026 against references 3 and 4.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.