1967 Rally Wheels "DC" vs "DG"

[Douglas L.]

Re: 1967 Rally Wheels "DC" vs "DG"

Mike,

I hope I can help clarify for you. First, I should have said body build date, not car build date

This page is from a survey that was done by a NCRS member some time back.

The way I interpret the chart is the first three columns, "Model Year", "Build Date", and "Vin#", is they apply to the body. So the body date B02 would be the body build date off the trim tag.(A=Aug, B-Sept, etc). The remaining columns shown after the vin# apply to the wheel.

So, for example, body #893 built on (B15)September 15th, that car had B code wheels. Body #1596 built on (B23)September 23rd had 4 "B" code wheels and 1 "DC" code wheel.

Body #9778 built on (G03)February 3, 1967 had 5 "DG" coded wheels.

As for all other bolt pieces and cast pieces, A was January, B was Feb, etc. like you say.

Let me know if I have helped.

Thanks,

Doug Lee

[Timothy B.]

Re: 1967 Rally Wheels "DC" vs "DG"

I measured offset on my DG wheel, this wheel is dated 2 67 inside and 15x6 JK. From the flat floor to the top of the rim it measures 7" and from the inside rim to the inside lug nut mounting boss (where it contacts the spindle) the rim measures approx. 3 9/16" which means +.060 offset (+-). This measurment is done with a rule and a metal straight edge.

The "B" wheel measures 6 15/16" +- from flat floor to rim edge and from inside to the mounting boss just shy of 3 1/2" so it seems there is positive offset there also but not as defined as the DG wheel. I don't have any calipers to measure closer and I would not think it would matter it's so small a difference.

One thing for sure, there is no offset that equals .88" or .56" as Wayne quotes from his book. I have DC wheel that I will measure and report back but I think it's safe to say there all the same. Why the different stampings??? Can anyone tell me what JK stands for, my memory tells me John Hinckley said it's the safety bead but I can't remember exactly.

[Mike M.]

Re: 1967 Rally Wheels "DC" vs "DG"

Thank you, Doug.
This was just the explanation I was hoping for.
HaND

[Wayne W.]

Re: 1967 Rally Wheels "DC" vs "DG"

Help me out here guys,
In viewing this objectively, the first dated entry is Feb. 2, 1967 (B02).
Nothing for production earlier than this, we can now assume that all prior production was of the Large "DC"?
The "DC" entries are:
1st - B23, 1 wheel, Black
2nd - B23, 5 wheels, Black
3-7 are dated after '67 Production and/or indicated for inventory, ie: SR.
3rd - G27, Boss - bGM6, 5 wheels Black
4th - G27, Boss - bGM6, 1 wheel Black
5 - 7 are marked as SR or with an asterisk, perhaps indicating the Small "DC"
5th - I27
6th - K22
7th - K28

"DG" entries are:
1st - B23 - 4 wheels, Black (4 wheels Indicate non-Corvette Application).
Entries 2-4 are after '67 production and/or marked for inventory.
2nd - G03, Boss: bGM6 (Non-Typical Production Code), 5 wheels, Silver.
Possibly appeared in the last week of Production with unusual logistics???
3rd - G27, Boss: bGM6, 5 wheels, Black
4th - G27, INV., Boss: bGM6, 1 wheel, Black.

If this Document is the grail, then,
This would now seem to confirm that all production cars (with the exception of the very early cars with "B" wheels) were produced with the Large DC wheels.
HaND
I'll be waiting.

Personally, I dont see how this document is the hole-e grail. It looks to be a survey of a few examples. Nice work, but not the grail. I have observed these wheels for many many years, and I can tell you DC and DG were both used on 67s and that there were many DGs. I think many people take a quick look and see DCs where there are actually DGs. The G is often stamped off the radius and is light and even missing. Some wheels actually have the end of the G broken off, almost like they were maybe using a G for a C. I dont know why it is, but many years of observations tell me its so. And, I have seen many more, and checked dates to confirm when they were made, than is on that small list.

[Mike M.]

Re: 1967 Rally Wheels "DC" vs "DG"

Hi Wayne.
Apologies for the confusion.
Initially, I was under the impression that the posted list was an official GM document until Doug mentioned it was actually a survey.
This new information tied it all together.
HaND