ATTENTION: These pages were created & copyrighted by Steve Parker. They reside here on MonteCarloSS.com only until we can contact Steve to get his site back up in operation.
George Dumpit's "Grim Reaper" 1986 SS


VIN Decoding

Contributions by: Mike Donovan

VIN Codes (1985-1988)

1st digit - Country code
2nd digit - Producer code
3rd digit - Division code
4th digit - Car line code
5th digit - Series code
6th digit - Body style code
7th digit - Restraint system code
8th digit - Engine code
9th digit - check digit - ignore
10th digit - Model year code
11th digit - Plant Location code
12th through 17th - Production sequence
ALL 1983 and 1984 Monte SS vins with: 1G1AZ37G
ALL 1985 and 1986 Monte SS vins with: 1G1GZ37G
ALL 1987 and 1988 Monte SS vins with: 1G1GZ11G

Digit
1. Country
2. ManufacturerG - General Motors
3. Division1 - Chevrolet
4. Car line code
5. Series
6+7. Body Style
8. Engine
9. Check DigitIGNORE
10. Year
11. Production Plant
12-17 Sequential Build


RPO Decoding

Contributions by: Greg Wentz

Regular Production Option Codes
for
1985-1987 GM Products

You can find your Service Parts Identification tag on the inside of the trunk lid.
(Example below.) 

Service Parts Identification  	          DO NOT REMOVE


1G1GZ11G0HP146030

AR9 B4V C1R D35 E5Z J41 MX0 N90 T1S US6 V73 I2U 82D
A01 B72 C18 D55 FFL K64 NA5 P0N T93 U16 YT9 6NY 82I
BV8 B77 C49 D71 F41 L69 NK3 P20 UM6 U39 Z65 7NY BX5
B89 C60 D80 GT4 G80 MW9 N33 QYH VP8 V64 1A4 8HK 9HK
829 B29 CD4


                   U.WA8535




PRINTED IN USA           07MR87       PART NO. 14085266
Z65, BV4, F41, L69 must appear on all true 83-88 SS's

RPO Code Definitions

The following listing is most of the GM Production Options. These options are also known as the RPO codes.
To find out what options your car was ordered with you may look up all the codes listed on your Service Parts Identification tag.