Model Identification
A combination Vehicle Identification Number and Rating Plate is used on all vehicles. Plate is attached to dash and toe panel on all "P" models (except Motor Home Chassis) and on left hand door pillar on all remaining models. Plate location on Motor Home Chassis must be supplied by body builder.
TCQ133F100001
First Digit - Make (GMC Division).
Second Digit - Truck Type.
Third Digit - Engine Designation.
Fourth Digit - Truck Series.
Fifth Digit - Model Type.
Sixth Digit - Model Year 3 (1973).
Seventh Digit - Assembly Plant.
Remaining Digits - Sequence Built Number.