COLIN THINK I FOUND WHAT YOU ARE LOOKING FOR, WENT OUT TO SHOP FOUND SCOTT'S SUPER TRUCKS CATALOGUE. IN IT WAS AN ARTICLE THE SERIAL NUMBER TELLS THE WHOLE STORY FOR CANADIAN GMC TRUCKS. THE FIRST #EXAMPLE 6 MEANS 1946 MODEL NEXT TWO # MEANS EXAMPLE 93 MEANS 1/2 TON NEXT TWO #'S ARE IF 43 MEANS CHASSIS WITH CAB THE #'S AFTER THAT INDICATES VEHICLE NUMBER. ON THE SERIAL PLATE SHOULD ALSO HAVE MODEL,SERIAL#, ENGINE,TRIM #, BODY SERIAL#, PAINT#. I'M NOT SURE WHERE THE PLANT IT WAS BUILT IN WAS LOCATED.
HOPE THIS HELPS
VALENTINE