Ford 2009 F-250 Owner's Manual page 411

The Vehicle Identification Number (VIN) contains the following
information:
1. World manufacturer identifier
2. Brake system / Gross Vehicle
Weight Rating (GVWR) / Restraint
System
3. Vehicle line, series, body type
4. Engine type
5. Check digit
6. Model year
7. Assembly plant
8. Production sequence number
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
5
7
T
B
2009 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)
Maintenance and Specifications
Description
Six-speed manual, Dana (ZF S6–650)
Six-speed manual, Dana (Z/F M6HD-W)
Five-speed automatic, TorqShift (gas engines)
Five-speed automatic, TorqShift (diesel engine)
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