Ford 2011 Econoline Owner's Manual page 306

Maintenance and Specifications
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
Five-speed automatic (5R110W)
Four-speed automatic (4R75E)
306
2011 Econoline (eco)
Owners Guide, 3rd Printing
USA (fus)
I n f o r ma t i o n P r o v i d e d b y :
Code
T
Q