FORD 2004 F-150 v.1 - Manual (Page 269)

7. Assembly plant
8. Production sequence number
Engine number
The engine number (the last eight numbers of the vehicle identification
number) is stamped on the engine block and transmission.
Transmission/Transaxle code designations
You can find a transmission/transaxle code on the vehicle certification
label which is located on the door pillar. The following table tells you
which transmission or transaxle each code represents.
Truck application:
Code Transmission Description
Manual transmission
M Manual 5–speed overdrive (Mazda R2)
C Manual 5–speed overdrive (Close ratio)
W Manual 5–speed overdrive (Dana ZF)
G Manual 6–speed ZF
Automatic transmission
U Automatic 4–speed overdrive (4R70W)
Maintenance and Specifications
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