Joe, were par numbers 3723561 and 3724824 wheels for '62 ever in service? Is there any record of deletion and supersession? I believe they would have been replaced by 3834956.
thanks, Chris
thanks, Chris
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Re: pn 3723561 3724824 ever in service? Lucia?
Chris-----
First of all, I can tell you that the 3723561 and 3724824 part numbers are a lot older than a 1962 model. So, IF they were used on a 1962, then they were used on some earlier model, too.
As far as the 3723561 and 3724824, I can find no record that they were ever a SERVICE-available part number. For that matter, I can't find any record of the 3834956 in SERVICE, either.In Appreciation of John Hinckley -
Like Joe, no service hits for 3723561-37234824
...even in my Oct'62, Oct'63, July '65, Oct'65 and Oct'66 parts history indexes (which cover changes in the title year and up to 2 years previous). May show in pre-'62 volumes, though.
But wheel rim Gr 5.803 # 3834956 first shows in the Oct'66 P&A 30 catalog, as well as Jan'70 P&A 30B. Described as '54-62 Passenger and Corvette, '54-62 Police (1st design), '63-'66 Passenger (except Police)... 15 x 5K. Still shows in the GM Master Price List of Feb '80.Comment
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Re: pn 3723561 3724824 ever in service? Lucia?
Joe, 3834956 is still available for $83 employee price though GM SPO.
3723561 was released in the Chevrolet system around 12/27/54. But per Noland was not used on a Corvette in production until '58 and is in the '62 AIM. Not sure where it was first used.
I also see that 3714744, which per Noland was a '58-'60 wheel was also in the AIM for '62 as optional with 3723561.
Clare, it looks like the 3714744 was released for '62. I believe this was a riveted wheel? Per Mike Ernst he has found no '62 with this riveted wheel. Also Noland states the 3723561 is riveted and the 3714744 was spot welded. I think, through the drawing, it shows that 3723561 is welded in the '62 time frame and later became riveted.
ChrisComment
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Re: pn 3723561 3724824 ever in service? Lucia?
Chris-----
Yes, I do find GM #3834956 now. It replaced GM #3794464 in May, 1966. That's a lot later than I would have expected and is the reason that I didn't find it earlier. It is a 15 X 5" wheel applicable to 1954-62 Corvettes, although it was never used in PRODUCTION for those aplications.
In any event, I show the GM #3834956 was discontinued in November, 1999. However, you could order one and if you get it, we'll know that information is incorrect. Perhaps, it was "resurrected".In Appreciation of John HinckleyComment
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Re: pn 3723561 3724824 ever in service? Lucia?
Thanks Joe, I doubt if I will ever order the wheel. Perhaps someone has lately? I just called the employee computer number and it gave me a price with no availability in Michigan. If anyone is interested I could call a live number and ask them to look for me.
3794464, per the drawing 3723561, was released at the same time as 3834956. Both these wheels were added to the drawing around mid '62.
3794464 is only coated with rust proof oil while 3834956 was black primed.
For some reason though they decreased the center hole diameter from the previous production released 3723561 and they would not fit the hub on the '62 corvettes. They have to be filed out. Also the valve hole was smaller.
Both these wheels were designed as welded (as was the production released 3723561) and then all 3 revised to riveted in '67. I doubt if any 3723561's were ever made in rivet form.
ChrisComment
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The bottom line for '61-'62 wheels is as follows:
The following wheel identification features pertain to regular brake '61-62 Corvettes only:
15x5" in size. The spider is spot welded to the outside rim and the spot welds are easily visible on the backside of the wheel. There are no dogbone shaped cutouts on the backside of the spider where it is welded to the rim, as found on earlier wheels.
Kelsey Hayes manufactures the wheels. The KH logo, size marking, date of manufacture, and I believe an association logo can all be found stamped inside the rim. These markings are not always easy to see, even on a nearly perfect wheel, and are usually found near the valve stem opening but could be anywhere on the inside rim surface. The dates are expressed as a numerical month and a numerical year stamped in very small characters. You may find both the month and year, one or the other, or even no dates at all. There should also be a "GM" stamped into the front side of the spider on one of the flat spaces between the lugholes.
The valve stem opening should measure .625" and the center hole opening should measure 2.91".
There will be three large nubs on the center spider to hold the smaller dogdish hubcaps. The outside of the wheel rim will have four small nubs, formed by being pushed out from the inside of the rim surface, to hold the full sized wheel covers.
The other distinguishing feature (and the judges will be looking for this) is the extra concentric circle on the spider, sometimes referred to as a "hump". I have seen this feature in a convex, (rounded hump) and concave, (somewhat flat "hump") design that circles the wheel near the outside of the spider center. This is hard feature to describe in print and it's difficult to see the difference with a casual glance, even with both types side by side, unless you know what you are looking for.
Chris: As you know, I have an NOS wheel dated '67 that looks very similar to a correct '61-62 wheel, EXCEPT that it has the smaller center hole and valve stem opening. There is also a "D" stamped in the outside of the rim, near the valve stem opening. I don't know what this pertains to but correct orginal wheels do not have it. The markings found inside this rim include all the logos, size and date marks, as mentioned above, for '61-62 wheels. I think you believe this wheel is the #3 revision introduced 5/7/62 for part number 3834956 and is no longer available having been replaced by a riveted design, with a different part number. We know this wheel was never used in production for our year Corvettes. However, if the center hole and valve stem hole were enlarged, it could be made to work and MIGHT even pass judging. Part number footnote: I was unable to find any part numbers stamped into any of my wheels.
Chris, (for the uninitiated reading this thread) works for GM. He looked up all the original drawings for '61-62 wheels and later replacement derivatives, in his quest to find and identify the correct wheels for his '62.
PS: If anyone thinks I am wrong on what I have described here, OR can verify this information as correct. Please state so and give your reasons why.
I have pictures of correct wheels dated 10 '61 and would be happy to email them to anyone who wants to see a "visual" reference to what is described here. Except for painting info there is very little stated about how to identify correct wheels in the Tech info and Judging manuals. Hope this info helps someone.Comment
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Re: The bottom line for '61-'62 wheels is as follo
All OK as we discussed except the service wheel 3834956 was first made as a welded wheel which should be the one you have. However when the design went to riveted they did not change the part number. So any wheels under 3834956 built sometime after '67 are most likely riveted. I have no wheels to prove this, just drawing changes.
I also see that the production wheel 3723561 was replaced on the drawing with 3724824 when it went to riveted.
Per the drawing the "D" stamp identifies the later service wheels (3794464, 3834956) with the smaller center hole and valve stem hole.
Also Clare there were two wheels optional for '62 in the AIM, 3723561, which is the welded wheel we are after and 3714744 which I cannot get a drawing for. I do not know if it was welded or riveted or whether it was still used on the '61 or '62.
Can someone tell us what the JGM wants for wheels for '58-'60 and what the AIM calls for?
ChrisComment
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