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more pics...

Another pic :

Well, I had some of my extra YJ rims chem stripped and this process really cleans up the visibilty of the the codes on the rim bands.
However, month and date codes are not consistent as it seems when they were at KH being date stamped.
Letters and numbers can be found, and can be random.
I think either is correct.
Checking date codes at the valve stems, codes in the center of the rim, to codes in the band will help somewhat in ID'ing these.
Here are a few pics from a set I am selling :

Anything relative of the smooth vs pebble grain wheel in 69 across models, and/or build timelines?

Any supply issues at the plants for this wheel while being assembled?

That's a close assembly timeline to your build date of your rims.
I would think that VN & Norwood were moving rather quickly by this time of the year.

My guess is is that both plants saw a drop off on manufacturing during the holidays.
They were still producing but at a slower pace.

Once everyone was back to work, I would assume that production times and dates came back together.
Alot like where your rims are so much closer to your build dates.

Maybe this s a good time to begin a K-H rim submission.

Maybe we could start a thread per coding:
YH rim thread
YJ rim thread
XT rim thread

Maybe a month by month categorizing.

If you are able to get the wheel center and band codes, that would be great!

Just to add to this discussion...

Found an image of a 1967 14 X 5 rally rim from a Nova that is stamped JJ on the band.

[A]

K = Kelsey Hayes (manufacturer of the rim for GM-Chevrolet)
1 = plant at Romulus, Michigan (for GM-Chevrolet)
9 = 1969 (Year of Manufacture)

Now, as I am searching around for info, in prior years of 1969...
KH rims being manufactured for Chevrolet, in my image above,
the earlier rims only used a single J after the rim stamping of the size and width.
Example :  14 X 5 J
Does the single J denote anything towards how the rim fits the brake system?
Where as, in 1969 JJ stamping, does the JJ represent anything towards brake system fitment?

What is curious to me is if the early 1969 Z28 AD rims were stamped with JJ or J ?
I would assume the the YH rims were having the JJ satmping.

In my image above, you will notice the letter A below the 14 of the 14X7 JJ stampings.
I am going to guess that this denotes the month that it was made.
This image is from one of my YJ rims in a set from January 1969.
To add, there is also a letter in the wheel center that seems to denote the month of manufacture, K-1-9 A.
On this particular rim, the A is stamped just under the GM stamp on the wheel center.
I am going to assume that the outer band was manufatured in Jaunary, 1969 by looking at this.
I am going to assume that the wheel center was manufatured in Jaunary, 1969 as well.


I decided to go and look at some of my other rims.
K-1-8 trhru K-1-9 issue.
Some of the K-1-8 rims have the Letter code in the wheel center on another of one of the 5 landings of the rim where it it can be stamped.
One set, stamped for October, 1968 denotes a 10-X date.
These rims show a K-1-8 with a Letter J.
Counting out the months, J lands on the month of October.

Thoughts....

Thanx for that link.

Has CRG done any research topucs on this?

LA vs Norwood?

Been tinkering with this thought in my head...

When a 1969 Camaro is being ordered, then built along the assembly lines, How long did it take K-H to make the rims to get to the car?

I wish to ask the timeline and process for rims to reach tires then reach the car being assembled.

Is there any timeline differences for the same questions above pertaining to Van Nuys vs Norwood plants?

It appears to have been a very nice restoration 15 yrs ago (1997 or so) on what appears to have been a very nice original Z28/RS (probably a different color than black!).   
Seems the trim tag was changed (repro?)
The surface rust is what you get when you 'restore' your car and leave metal parts unprotected.   
If I work on a part of my car, I don't like to leave the metal unprotected;
if I have to clean it once, I want to protect it better than the factory did.
Yes, it's a little dirty from some driving and has the age of a 15 yr old restoration.

Note:  Most car clubs judging standards today allow use of clear or semi-flat black paint on such parts...   

Gary / 69Z28-RS

No comment on the TT, but I wouldnt be surprised.
Rust or surface corrosion persists on any car, for the most part.
Ive restored many parts on my car years ago.
Even for the fact that my car has been garaged for years, corrosion has appeared slightly... even after correctly replating items.
Moisture in the surrounding air can rapidly advance the corrosion process.
Not sure how long this car has been in Washington state,
but I'd bet the Ocean air is contributing to the advancing surafce rust you are seeing on this car.

I had some tooling made to replicate the rivets installed.
Did it to my PaceCar ball joints...

[CW]

Here is 2 Pontiac Distributor Cam pieces that I have here.
Both show the CW.
Notice the advance window (is this the correct name for this area???)
The 7(22) has a smaller window vs. the 5(32)

Im not a Pontiac guy,
BUT!
I do know a very succesful pontiac stock racer who may be able to help.
I just picked up a Pontiac housing; no use for it but something to compare with?


CCW may be correct.

I myself wish to further explore this.
The one I am currently dealing with "appears" to be a local rebuild unit.
This distributor is not the correct stamped housing to my vehicle.
I compared it to an unmolested original piece, having the same ID stamping, and have found some differences between the 2.

The cam piece is a CCW 730.
The original unmolested distributor has a CCW 522.
Secondly, I am seeing a shaft with a different top cam vs the original unit.
The counter weights, in relationship to this cam, doesnt seem to be matching what I see in the unmolested distributor.
Why is this?
Disclaimer : I admit I know nothing about these, so please be understanding to my desired learning curve!

Is there a website or a distinguished individual who is in the know on how to translate all of these?

Thanx !

Is there a listing anywhere to determine each distributor cam piece?

I am not an expert on these; just trying to learn how to understand them and how to determine what each piece equals to.