FORD 2011 F-150 v.3 - Manual (Page 423)

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
Six-speed automatic (6R80) 6
Maintenance and Specifications
423
2011 F-150 (f12)
Owners Guide, 3rd Printing
USA (fus)