FORD 2009 E-450 v.1 - Manual (Page 313)

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
Four-speed automatic overdrive (4R75E) Q
Five-speed automatic TorqShift with Tow/Haul T
Five-speed automatic 5R110W-Hi/Torque B
2009 Econoline (eco)
Owners Guide, 1st Printing
USA (fus)
Maintenance and Specifications
313