OBS BILLET UNIVERSITY™
OBS VIN DECODER
KNOW WHAT YOU GOT.
Decode your 1988–1999 Chevrolet or GMC GMT400 truck VIN. Enter all 17 characters below.
1988–1999 GMT400
ENTER YOUR VIN
TRY EXAMPLE
YOUR OBS
DECODED
COUNTRY
—
VIN POSITION 1
MANUFACTURER
—
VIN POSITION 2
DIVISION
—
VIN POSITION 3
GVWR CLASS
—
VIN POSITION 4
DRIVETRAIN / CHASSIS
—
VIN POSITION 5
SERIES
—
VIN POSITION 6
BODY STYLE
—
VIN POSITION 7
ENGINE
—
VIN POSITION 8
CHECK DIGIT
—
VIN POSITION 9
MODEL YEAR
—
VIN POSITION 10
ASSEMBLY PLANT
—
VIN POSITION 11
PRODUCTION NUMBER
—
VIN POSITIONS 12–17
17-DIGIT VIN BREAKDOWN
IMPORTANT:
This decoder covers common 1988–1999 Chevrolet and GMC GMT400 VIN configurations.
GM used additional codes on certain models, plants, GVWRs and special applications.
Always verify critical fitment information before ordering.
