Originally Posted by karl (Post 3544747)

Nothing changed as far as i know. Little trim parts such as the grille. Look on the website: chuckschevytruckpages.com/ Lots of info there.

Originally Posted by 68 TT (Post 3544888)

It is highly unlikely that somebody would have a title for an exact 73 truck with the same build sequence number too.

Originally Posted by bigblock73 (Post 3544858)

I have this info on my site...

http://www.73-87.com/7387info/7380vin.htm

Originally Posted by Keith Seymore (Post 3544996)

As an example (it's a little different timeframe), but I just discovered two 1965 Pontiac GTOs with the same sequence number; one was built in Fremont and the other in Pontiac Michigan. In fact, that's how I found them: I was asking about the Pontiac built car and erroneously got the Fremont information instead. In this case the VINs were exactly the same except one had a "Z" and the other a "P". (ie, 237375Z123456 vs 237375P123456).

Originally Posted by karl (Post 3544743)

I have a 1975 chevy half ton and the vin starts out ccy145. Is that the number on the truck or pink slip? The only vin tag is inside the door. They didnt start putting them on the dash until i think 1979. Sounds like someones made a mistake or is trying to screw you somehow. They may have sold you a truck that is junked somewhere and they might come and get your truck since they still have the pink that goes with that truck. Its not your truck until you have the correct pinkslip that matches. I would contact the CHP real soon. Keep an eye on the truck in the mean time. Z is for Fremont plant. My truck is the same. In fact Moreno Valley is less than 10 miles from my home.

Originally Posted by Keith Seymore (Post 3545075)

Is there a VIN on the frame for '73 - '75?

As noted in my sig, I didn't start in the assembly plant until 1979, so I can't say with certainty.

K

Originally Posted by Keith Seymore (Post 3544996)

Looks like you all have this specific problem pretty well handled (or at least a plan in place), so I'll let you follow up on that - but - I would like to make a couple general VIN comments:



It is possible to have the same build sequence number imbedded in different VINs. It could happen a couple different ways: (a) if the same build quantities were achieved during separate model years at the same plant, or (b) if the same build quantity was achieved within the same model year but at different plants.

As an example (it's a little different timeframe), but I just discovered two 1965 Pontiac GTOs with the same sequence number; one was built in Fremont and the other in Pontiac Michigan. In fact, that's how I found them: I was asking about the Pontiac built car and erroneously got the Fremont information instead. In this case the VINs were exactly the same except one had a "Z" and the other a "P". (ie, 237375Z123456 vs 237375P123456).



Secondly, I just wanted to volunteer that, during my time at Flint, Chevrolet build sequence numbers started with 100001 and GMC nameplates started with 500001.

Thanks,

K

Originally Posted by JohnC (Post 3545116)

If I remember correctly they put them on the frame rails until they started the new numbers on the dash. I could be wrong, and maybe someone with more info will clarify.

Originally Posted by 68 TT (Post 3545145)

The numbers on the frame are a partial VIN for verifying the frame matches the cab.

There are usually several on each vehicle with one on the engine, trans, firewall, cowl panel, frame rail and in the trunk drip rail on my 68 Camaro as an example.

Originally Posted by Libertad (Post 3545226)

Originally Posted by Keith Seymore (Post 3545217)

Again, I can't speak for '73 - '75, but for 1980 and later there absolutely is a full VIN on the frame rail, top of the rail, RH side under the cab. As far as I remember there were no secondary locations on the frame, nor other locations on the cab (ie, none under the heater box or cowl area) other than the primary VIN on the dash. IIRC -

You are correct, there would be a VIN on the engine and trans as well.

K

Originally Posted by 68 TT (Post 3545256)

The partial VIN's are all over the vehicle to help auto theft detectives identify stolen parts and cobbled together cars with stolen parts on them.

According to my dad the retired auto theft detective the locations are supposed to be secret and hard to get to for that very reason.

If you are really worried about it take it to the CHP and have them verify the VIN with a hidden VIN. They will know where they are.