GM Service Manual Online
For 1990-2009 cars only

All engines and transmissions are stamped or laser etched with a partial vehicle identification number (VIN), which was derived from the complete VIN. A VIN derivative contains 9 positions. A VIN derivative may be used in order to determine if a vehicle contains the original engine or transmission, by matching the VIN derivative positions to the accompanying positions in the complete VIN.

VIN Deriative Position

Equilavent VIN Position

Definition

Character

Description

1

3

GM Division Identifier

C,N

Chevrolet

T,K

GMC

H

Oldsmobile

2

10

Model Year

X

1999

3

11

Assembly Plant

K

Linden, NJ

8

Shreveport, LA

2

Moraine, OH

X

E.E.M.S.

4-9

12-17

Plant Sequence Number

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