FORD 2011 Explorer v.3 - Manual (Page 410)

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 (6F50) J
Six-speed automatic (6F55) C
Maintenance and Specifications
410
2011 Explorer (exp)
Owners Guide, 4th Printing
USA (fus)