FORD 2012 F-550 v.2 - Manual (Page 416)

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.
Description Code
Five-speed automatic (5R110W) T
Six-speed automatic (6R140) P
Six-speed automatic (6R140W) W
Maintenance and Specifications
416
2012 F-250/350/450/550 (f23)
Owners Guide, 2nd Printing
USA (fus)