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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


My 73 vin decode

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My 73 vin decode Empty My 73 vin decode

Post by Scott 73 SS Tue Jan 24, 2017 10:50 pm

Can you guys help me so I will know exactly what I have....thanks..... Scott My 73 vin decode Img_2026
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Post by Joe73 Tue Jan 24, 2017 11:19 pm

You mean Trim Tag Decode. VIN is on your windshield. That tag is on your cowl.

Starting on the top row.

73 model year.
1AD37 Chevelle sport coupe
198656 Body sequencing code (if I remember correct)
704 Black oxen fabric interior
A52 Bench seat
19 Tuxedo black exterior upper
19 Tuxedo black exterior lower
03D17 03D build date of March, 4th week. (17 is unknown)
0687 sequencing number used at the plant.
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Post by Joe73 Tue Jan 24, 2017 11:22 pm

Try to grab the numbers and letters off the engine block pad right behind the alternator. Should be 6 digits space 3 letters.

If the 6 digits match your last 6 digits of your VIN you have a numbers matching block to the car.

The last 3 letters will tell you what trans came with the car originally.
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Post by Scott 73 SS Tue Jan 24, 2017 11:55 pm

Thanks man.....I meant trim tag.....
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Post by SSTOOLMAN Wed Jan 25, 2017 11:12 am

Is there a designation for SS equipment? How about a designation on the cowl tag that tells you what motor originally   came in the car, in this case for a SS 350 cubic in.  vs 454 cubic in.?
(This would be handy information if your car is known to have a non original motor)
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Post by Joe73 Wed Jan 25, 2017 12:06 pm

No SS designation on the trim tag and no engine designation on the trim tag either. Just basically exterior and interior color, bench or buckets and build date.

Best way to check for original engine would be with the stamp on the pass. side of the block right behind the alternator. The last six digits of your vin will be there and three letters. The six digits have to match your vin to be numbers matching. The three letters will tell you what trans came with that engine originally.
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Post by clanceman427 Wed Jan 25, 2017 12:36 pm

SSTOOLMAN wrote:Is there a designation for SS equipment? How about a designation on the cowl tag that tells you what motor originally   came in the car, in this case for a SS 350 cubic in.  vs 454 cubic in.?
(This would be handy information if your car is known to have a non original motor)

5th digit of the VIN will tell you what the 1973 Chevelle originally came with. So for the SS engines they are:
H for 350 2v (L65)
K for 350 4v (L48)
X or Y for 454 (LS4)

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Post by SSTOOLMAN Wed Jan 25, 2017 2:12 pm

Thanks!
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