TRUCK SERIAL NUMBER DESIGNATION EFFECTIVE AUGUST 1978 WITH START OF 1979 PRODUCTION ALL VEHICLES HAVE 13 CHARACTER SERIAL NUMBERS AND WILL BE CONSISTENT IN CHARACTER PLACEMENT AND MEANING A TYPICAL NEW VEHICLE IDENTIFICATION NUMBER V I N FOR MODEL B6PO42 IS C 0r T 16PB 9 V 555 354 MEANING OF CHARACTERS IS AS FOLLOWS Chassis Type Series GVW Range Cab Type Engine Code POSITION I I NUMBER 12345678910111213 T1 V555354 Sequence Number Plant Code Pontiac IVIOdeI Year Code S Make C Chev T GIVIC 2 Chassis Type 4 Cab Style 1 42 4 X 2 P School Bus Chassis Flat Back Cow 5 Engine I A GM V8 350 Gas w 2BC S S IGVW Range B eivi ve ses eas W 4Bo Chassis Type 4 X 2 E GM V8 427 Gas w 4BC 6 16 000 25 000 F GM V8 8 2N Diesel G GM V8 8 2T Diesel 6 Year Designation 9 1979 A 1980 6