FORD 2010 F-550 v.2 - Manual (Page 397)

TRANSMISSION CODE DESIGNATIONS
You can find a transmission code on
the Safety Compliance Certification
Label. The following table tells you
which transmission each code
represents.
Code Description
5 Six-speed manual, Dana (ZF S6–650)
7 Six-speed manual, Dana (Z/F M6HD-W)
T Five-speed automatic, TorqShift (gas engines)
B
Five-speed automatic, TorqShift (diesel
engine)
Maintenance and Specifications
397
2010 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)