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Old 05-07-2020, 01:09 PM   #6
1976gmc20
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Join Date: May 2015
Location: Montana
Posts: 3,696
Re: Wheel ID and tire choice

Quote:
Originally Posted by Det57 View Post
So the "Split Ring" wheel is much safer than the one you pictured with the rivets??? The 80's split ring will take the 900R20 ?

Ill check mine for the rivets tomorrow....
They come apart from the back or hollow side. There is a starter notch which should be lined up with the valve stem IF the last person who had them apart knew what he was doing. You probably can't see the notch until they are deflated and the beads separated from the wheel on both sides.

There is a very slight egg shape where the two pieces fit together which allows one piece to be forced over the other piece when the tire is deflated and beads broken loose. Sometimes you have to stand on the tire to push it down to get everything loose enough. You get the smaller half pried up on one side and cocked at an angle to the big half and then use a small/medium sledge to tap it more or less sideways to pop off. Assembly is the reverse, but you "tap" the inside of the ring piece to get it to pop over the main part of the wheel. You can NOT pry the two pieces up/down to get apart/together; it has to be at an angle and go sideways.

I changed all my own tires on my 1965 c/50 back in the 1980s. I bought used tires from a school bus contractor and since I was hauling logs on gravel roads I had a lot of flats over a typical season. I never had any problem with them but it is a sweaty job. The trick to airing them up safely is to making sure the two pieces are loose on each other after popping the ring piece onto the rest of the wheel. That means it is all the way over the little ridge that holds it together. You should be able to turn the ring on the wheel after it is installed, and that is when you line up the notch with the valve stem so you can find it easily the next time.

Best practice is to use a lock-on air chuck and stay back when airing up, but I never had one come apart unintentionally.

Of course you still have to know the general practice of putting a truck tire/tube/flap on and off a dismantled rim. It's pretty simple but can be frustrating if you don't know how to go about it.
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Current/past Chevy/GMC trucks:
1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD

Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner
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