Transmission/Transaxle Code Designations - Ford F-550 Owner's Manual

Maintenance and Specifications
1. World manufacturer identifier
2. Brake type and gross vehicle
weight rating (GVWR)
3. Vehicle line, series, body type
4. Engine type
5. Check digit
6. Model year
7. Assembly plant
8. Production sequence number

TRANSMISSION/TRANSAXLE CODE DESIGNATIONS

You can find a transmission/transaxle code on the vehicle Safety
Compliance Certification Label. The following table tells you which
transmission or transaxle each code represents.
Code Description
5 Six-speed manual, Dana (ZF S6–650)
7 Six-speed manual, Dana (ZF M6HD-W)
T Five-speed automatic, TorqShift (gas engines)
B Five-speed automatic, TorqShift (diesel engine)
300
2007 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)