G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


GMC Vin And Cowl Decoding

 

Vehicle Identification Number (VIN number)

 

The VIN is located on the top left side of the instrument panel and visible through the Windshield.

 


First Digit

Identifies the Division

 

5 ============= GMC Truck

 

 

Second Digit

Identifies the series or model of car

 

Code =========== Series (model)

C ============= Sprint
D ============= Sprint Custom

 

 

Third & Fourth Digits

Identifies the Body Style

 

Code =========== Body Style

80 ============= Sedan-Pick Up-Two Door-Two Way Tailgate

 

Fifth Digit

Identifies the Engine

 

Code ===== Type ====== CID ====== Carb ====== HP ====== RPO

D ======== L6 ======== 250 ====== 1 BC ===== 100 ===== L22

F ======== V8 ======== 307 ====== 2 BC ===== 115 ===== L14

H ======== V8 ======== 350 ====== 2 BC ===== 145 ===== L65

 

 

Sixth Digit

Identifies the Model Year

 

Code =========== Year

3 ============== 1973

 

 

Seventh Digit

Identifies the Assembly Plant

 

Code =========== Assembly Plant

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Last Six Digits

The production Sequence Numbers

Starting number is 400001 and up