What Are The Correct Markings/Script For '70 GS455 Glass????

Should ALL of the dates be the same? I’d think that they should be. Hopefully someone will chime in that knows.

 

This was stamped on my new glass. I paid $50. Per stamp (6) pieces of glass. I wrote down on paper. PPG duplicated correct date.

 

Car was built Fremont June 71

 

LOF Glass Date Codes;
"TV" August of 69
"AV" September of 69

Looks like all the glass except the front windshield is original to your car.
Duane

 

Duane, Are you saying that it's correct that all of my side glass is AV except for the passenger side that is coded as TV??
Also, what does the "4" mean following the AV & TV on the door glass? Thank You, Mark

 

Tinted glass was not part of the AC option nor was it mandatory. I believe it was pushed by the salesmen as being necessary with AC.
I have seen the paperwork for quite a few cars that came with AC and not full tinted glass.

 

I am saying that ALL your glass is correct and that some of it was made in August 69 and some was made in September of 69.

Those dates would be perfect for an October 69 built car.

The "4" is for plant #4, which is where the glass was made.

If you start getting into the date codes of your parts, you are going to see that not everything will have the same dates. Some of your seat belts will probably have been made on different weeks. You will also find that a lot of the parts will be dated very close to the build date of the car (these will be the common everyday used parts), while others (more rare pieces) will be further away from your build date.

If you have the original chrome wheels on the car you may find that the rims are dated close to the build date, but the hubs were built up to 6 months before that. The date on the rim is close to the wheel assembly date, which is in Crayon on the inside of the rim and is covered by the tire when installed.

All the cast iron pieces of your motor, as in the block, heads, and intake, will usually have been cast within a few days of each other, and will be close to the build date of the car. While other things like a Stage 1 Carb or Dist. are usually further away. That is due to the fact that they were rare and were produced in batches, and when the supply got low another batch was produced. So these parts get further and further away from the body build date, until the next batch got made, and then they get close again.

I have date code info like this off several 70 cars out of Flint that were made at different times of the production year. When you reference them against each other, you get an idea of how the parts "flowed" into the production plants, and how it changed over the production year.

The other thing to take from this is that the info you get off a 70 car, as in spread you will see in the date codes, will not be the same as on the 71-72 cars. So don't assume if your seat belts pre-date the build date by 4 weeks, that a 71 car would have the same spread.

If you are interested my book only deals in date codes. It will not go into part numbers or anything else. David Walker did a book on part numbers, so if you decide to get both books you can ID almost every part on your car.
Duane

 

That is non tinted. This is all strange to me. Every GM car with AC I ever owned had all tinted. For that matter even the Non AC cars I owned had tinted glass.

 

I always thought that the Buick’s (Skylarks) came with tinted Glass. And the other A body’s like Pontiac came with non tinted unless it was ordered with car

 

Optional on all. Three ways to get it. None tinted. Windshield only tinted or all tinted. I still swear I read somewhere AC option triggered tinted glass. Going to have to hunt now.

 

I know on the 72 Zone cars, all with AC the windshield was tinted but all the rest of the glass was clear.

 

Yes A/C cars tinted glass. Non A/C not tinted. Been discussed many times

 

Tinted glass was an option on all cars, not standard with or without AC. As someone said, you could order either a tinted windshield or all tinted glass. I have never seen Sloan documents or GS Historic documents, original window stickers ( and I have seen a lot of those documents) or anything else that makes tinted glass required on AC cars.

I believe it was an up-sale by the salesmen when AC was ordered. Many non AC cars got tinted glass or just tinted windshields. If anyone can find documentation stating tinted glass was required with AC I would love to see it so we could put this to rest, I don't mind being wrong but it would not explain why I have seen AC car documentation without full tinted glass.

How much of a difference do you think a tinted windshield really made with AC?

 

"Yes A/C cars tinted glass. Non A/C not tinted. Been discussed many times"

That is not what we are saying and it is not correct.

The AC option was just that, for AC.

The glass options were not tied into the AC option code.

This is proven by both the 70 Assembly Manual and the 70 wholesale car order form, which is what the dealerships used to buy the cars from GM.

Mike,
This has been put to rest, but like some other topics just keeps coming back.

Now I looked it up for the 1970 cars as that is what Mark has. Maybe it should be up to someone else to check the other years.

And just to be perfectly clear, this is for the A-Bodies only. I have no idea what the big cars had.
Duane

 

Thanks Duane

 

No sweat.

 

All non AC cars I have owned had all tinted glass so that shows it was available. I found all build sheets. A01 code I think.

 

Like I said above, the code for AC did not demand or exclude any glass codes. (Some option codes did exclude items, like if you ordered a full length console you could not get it with a manual 3 or 4-speed trans, or a bench seat.)

Regarding glass that means you would get,
1. All clear glass if you didn't check anything off
2 Tinted windshield only, or
3. All tinted glass
for any A-body regardless if it came with AC or not.

I think we kicked this horse enough.
Duane