The Stovebolt Site Forums The Shop Area General Truck Talk 1947 Serial number and model year, does anyone have information

The 1946 "model" EC was sold into the 1947 calendar year. I think it was the first domestic "model" sold after WWII.

In the case of GMCs (not Chevrolet trucks), GMC simply did not use a year number, GMC used a model code.

For example: a 300 size (also called series) GMC was a 1.5 ton truck

EC and ECS and EF were model codes used in 1946 - here are EC-300 and ECS-300 and EF-300 model codes (and serial numbers): http://www.oldgmctrucks.com/page0016.html

It that confusing enough?

It even gets better in 1954 - the serial number also has a letter-code preface (Z for Z-series).