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Old 05-25-2020, 11:32 PM   #1
cgrocen
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Info needed for 17" x 6" wheels 1965 C30

Hello everyone,

I have a Canadian 1965 C30 and I am looking for information on the original 17" x 6" steel wheels that the truck left the factory with. There are 1970's-80's wheels on it right now, and I can't use the stock hubcaps. I obtained a report from Vintage Vehicle Services and it shows 17" x 6" wheels, and a note that they were painted black. The truck is a cab and chassis and is painted Chambray Blue. My questions are:

1. What is the part number for the correct 1964 C30 17" x 6" wheel?

2. What year range and model range (C20?-C30?) does this wheel fit?

3. Does anyone have a photograph of one of these wheels so I know what to look for?

Also, would there be a difference between Canadian and American wheels?

Thank you in advance,

Chris
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Old 05-26-2020, 12:05 AM   #2
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Re: Info needed for 17" x 6" wheels 1965 C30

Post # 17, thanks to oem4me and post # 18 http://67-72chevytrucks.com/vboard/s...c+wheel+thread
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Old 05-26-2020, 12:18 AM   #3
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Re: Info needed for 17" x 6" wheels 1965 C30

Excellent! Thank you! So it looks like 1960-1968 C20 and C30. Now I know what to look for.
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Old 05-26-2020, 01:01 AM   #4
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Re: Info needed for 17" x 6" wheels 1965 C30

I have seen a set of 17" wheels on a Canadian 1966 GMC 1 ton. But, the wheels appear to be a different style than the 17" wheels in the wheel thread. There are 17" x 5 and 17" x 6" wheels that were available. Perhaps this is the difference?

Here is the 17 inch wheel from the wheel thread, not sure of width:



Here is the 17" wheel from the 1966 Canadian GMC 1 ton with 7.50-17 tires so I presume this is a 17" x 6" wheel. Note also that these wheels appear original to this truck as they are painted the same color as the body and do not show any evidence of having been painted over an original black wheel.







Are there any stampings on these wheels that would indicate the size?

If so, I would imagine they are on the inside and you would need to take the tire off, correct?

Comments please.
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Old 05-26-2020, 07:38 PM   #5
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Re: Info needed for 17" x 6" wheels 1965 C30

Welcome to the site, we can always use some more purists who appreciate the way they looked when new. You are right, there were two different 17" wheels, a 5" and a 6". Trucks that came originally with 7.00-17 had 5" rims and trucks that came originally with 7.50-17 had the 6" rims. IMO, the black rims and the green rims are the same. Pre '60 trucks and '60-'68 step vans with solid front axles came with a flatter design 17" wheel. The look is pretty obvious, the center section does not cone out as much as the wheels in both photos. There should be markings on the back side of the wheel which indicate year made and size. The 17" was the heaviest duty single wheel offered by GM and it looks it! The blue C20 in photo has the 17" wheel. They were all black. 16" wheels were black also, but had a silver ring. U.S and Canadian Chevy wheels would be painted the same. GMC's built in Canada had different paint rules on wheels, and yes, wheels were painted body color on Canadian GMC's for solid paint, not sure on tu tone paint jobs.
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Last edited by factorystock; 05-26-2020 at 09:04 PM.
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Old 05-27-2020, 12:15 AM   #6
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Re: Info needed for 17" x 6" wheels 1965 C30

Hello Factorystock, thank you for the additional information. Those pie crust bias ply tires on the light blue truck are terrific! I was going thru some old photos I had from a wrecking yard a couple of hours away from me, and I came across these two photos. It looks like a 1966 GMC 920 and I believe it has the correct wheels for my 1965 C30. I can read the size on the rubber and it is 7.50-17 8 ply. That would lead me to believe they are 17" x 6" wheels, exactly what I need. I called the yard today and they still have the truck! I am going on Friday to check things out. Hopefully I will be coming home with 4 correct wheels! Wish me luck! Note that this gold GMC that I believe is a solid color truck, has black wheels, not body color wheels. Whether they are original to the truck or not, who knows.

Here are the photos of the wheels:




Last edited by cgrocen; 05-27-2020 at 12:37 AM.
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Old 05-27-2020, 12:20 AM   #7
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Re: Info needed for 17" x 6" wheels 1965 C30

Factorystock, it is interesting to note that there is one line from the chart that shows 7.00-17/8PR.... 7.50-17/8PR..... 5.0. Does that mean you could get a 7.50-17 on a 5" wide wheel? Or does the chart show front and rear tire and wheel size?

Last edited by cgrocen; 05-27-2020 at 12:25 AM.
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Old 05-28-2020, 03:11 PM   #8
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Re: Info needed for 17" x 6" wheels 1965 C30

I talked to the wrecking yard again, they sent someone out to look at the truck to check on the wheels, and they are now gone.. I don't think I could go anyhow because of cross border Covid 19 travel restrictions. I am in Saskatchewan, and the yard is in Manitoba, and unless the travel is essential, such as a medical appointment, I cannot go.
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Old 05-30-2020, 01:21 PM   #9
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Re: Info needed for 17" x 6" wheels 1965 C30

Sorry, failed to mention first vertical row on chart ( post #5 ) is front and second vertical row is rear. Never realized there were 5" and 6" rims . Again, the only thing I ever noticed is the offset, the hubcap would sit almost level with the newer rims, where the older style rims, the hubcap would be more sunken in. Next chart doesn't even show the 6" ? These are 3 piece design. 17" wheels on this 4x4 look identical to the wheels on the green GMC.
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Last edited by factorystock; 05-30-2020 at 11:07 PM.
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Old 05-31-2020, 08:28 PM   #10
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Re: Info needed for 17" x 6" wheels 1965 C30

Thank you for the update factorystock. Here is a 17" x 5" wheel that I have that I picked up last year not knowing if it was correct for my truck. Note that it is made in Canada, dated 6-61, but it has a different outer lip design than shown in the information in the catalog/manual/chart. It has a regular style of lip instead of the large rounded lip. Different because of Canada??? It was made in Canada by Kelsey. There is no date or size on the inside back. I wire brushed it and did not find anything there. The markings are on the smaller removable outside ring. Interesting.





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Old 05-31-2020, 08:39 PM   #11
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Re: Info needed for 17" x 6" wheels 1965 C30

Here is another wheel that I got last year, again, not knowing what was correct for my truck. This is the one that I need to find 4 more of. 4 wheels on the truck and 1 spare then. This one is marked 17 x 6.0 on the back side along with the date 6 of 64. Perhaps the simple way to identify the 17" x 6" wheel is to look for the big rounded outer lip, then verify with the stampings on the back side.





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Old 06-26-2020, 11:17 PM   #12
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Re: Info needed for 17" x 6" wheels 1965 C30

Success! I went to the wrecking yard in Manitoba today as the Covid 19 travel restrictions are relaxed for visitors from outside of Manitoba. They screwed up in the yard. The wheels were NOT gone from the 1966 GMC 930 truck I saw before. Better yet, they had some new inventory and I scored four 17 x 6 wheels for my 1965 C30! These were in cosmetically better shape than the ones on the 1966 930 GMC.

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Old 06-27-2020, 11:49 AM   #13
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Re: Info needed for 17" x 6" wheels 1965 C30

Congratulations on the complete set find! Do they have the same off set as the correct green rim? Hard to tell from the photo. Older privately owned wrecking yards are the best! These are the types authentic parts that are disappearing everyday in the U.S., most get crushed because most people don't want to deal with the extra expense of tubes, flaps and going to an exclusive truck tire dealer only to mount tires. Speaking of tires, you will want to find the 7.50-17, not a low profile metric size. These rims were designed by engineers, much smarter than us, designed to carry the maximum load back in the day. When assembled properly by skilled truck tire people, there is no problem with them, and these wheels never had a recall like the 15" version did. Please let us know the date code on this new set when available. The photo of the rim with the regular style ring is very interesting, appears to have the same correct offset as the green rim, but, I don't recall ever seeing one like that, and don't see it in any of my books.

Last edited by factorystock; 06-27-2020 at 12:00 PM.
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Old 06-28-2020, 11:42 AM   #14
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Re: Info needed for 17" x 6" wheels 1965 C30

I got one pair of wheels from a 1967 C30, and another pair of wheels from another 1967 C30. Both sets came from the front. It appears that the rear wheels were not in as good shape cosmetically because of gravel being kicked up and nicking the paint. One pare had a date code of 11-66 and was marked 17 x 6. I did not find markings on the other pair. Yes, I will put 7.50-17 bias ply tires on these wheels. I really like the correct look of the bias ply tires.
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