EXAMPLE:


LINE 1: Year, GM Division, Model and Body, Assembly Plant, Sequence Number

Year	GM Division	Model Series	Body Code	Assembly Plant	Sequence #
73 = 1973	1 = Chevrolet	XX = Nova XY = Nova Custom	17 = 2 door hatchback 27 = 2 door sedan 69 = 4 door sedan	L = Van Nuys, CA W = Willow Run, MI	Starts at 100001

LINE 2: Trim and Paint

Interior Trim	Seat Type	Exterior Paint (Lower/Upper)
750 = Black sport cloth bench (custom) 751 = Black knit vinyl bench or buckets (standard) 752 = Black sport cloth bench or buckets (custom) 753 = Black knit vinyl bench (standard) 754 = Black perforated vinyl buckets (custom) 755 = Black cloth bench (standard) 756 = Blue cloth bench (standard) 757 = Green knit vinyl bench (standard) 758 = Green cloth bench (standard) 759 = Green cloth bench (standard) 760 = Green knit vinyl bench (standard) 761 = Green cloth bench (custom) 763 = Neutral knit vinyl buckets (standard) 764 = Neutral cloth bench (custom) 767 = Chamois knit vinyl bench (standard) 769 = Neutral cloth bench (standard) 770 = Green cloth bench (custom) 771 = Neutral perforated vinyl buckets (custom) 772 = Blue cloth bench (standard)	A51 = Bucket Seats A52 = Bench Seat	11 = Antique White 24 = Light Blue Metallic 26 = Dark Blue Metallic 29 = Midnight Blue Metallic 42 = Dark Green Metallic 44 = Light Green Metallic 46 = Green-Gold Metallic 48 = Midnight Green 51 = Light Yellow 56 = Chamois 60 = Light Copper Metallic 64 = Silver Metallic 68 = Dark Brown Metallic 74 = Dark Red Metallic 75 = Medium Red 97 = Medium Orange Metallic A = White Vinyl Roof B = Black Vinyl Roof D = Blue Vinyl Roof F = Chamois Vinyl Roof G = Green Vinyl Roof H = Maroon Vinyl Roof T = Neutral Vinyl Roof

LINE 3: Build month and week

Month	Week
01 = January 02 = February 03 = March 04 = April 05 = May 06 = June 07 = July 08 = August 09 = September 10 = October 11 = November 12 = December	A = First Week B = Second Week C = Third Week D = Fourth Week E = Fifth Week