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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: May 2022 Posts: 8 'Bolter | | 'Bolter Joined: May 2022 Posts: 8 | 1958 GMC COI
I final got the truck bought and delivered. the first thing is the tires are all are mostly flat and dry rotted. on the side of the tires are marked 8.25 x 20. I sure they are split ring rims. will 245/70/19.5 fit my wheels. what about 10 or 11 x 20. Also it has a 370 engine any one know where I can get a manual for 64 year old truck? Im more use to cars from the 70s and later. | | | | | Joined: Feb 2004 Posts: 29,748 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,748 | All the "XX.5" tires are tubeless, and require a different rim. They CANNOT be mounted on the wheels you have currently. The only tube type multi piece wheels that are dangerous and illegal to run are the Firestone RH-5 type that are joined together with a very narrow lip at the center of the wheel assembly. Wheels with a removable flange at the edge of the assembly come in various designs, and all of them are safe, assuming they're not rusty or damaged to the point that the locking sections don't mate properly. A professional tire shop that routinely works on heavy trucks and/or farm equipment will be able to evaluate your wheels and advise you on whether they are safe to use or should be replaced. Advice you get about wheels (including mine) from an internet chat room is worth exactly what it costs you to read it. However, some of us who post here have been working with multi-piece wheels and tube type tires for 50+ years, and we're still alive!
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Jan 2022 Posts: 2,436 'Bolter | | 'Bolter Joined: Jan 2022 Posts: 2,436 | That 370 engine is a 371 Olds.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
| | | | | Joined: Sep 2018 Posts: 48 'Bolter | | 'Bolter Joined: Sep 2018 Posts: 48 | I’m 77. My uncle used to have a 63 one ton step side pickup with split rims. We had to find places with a rack made of pipe so the guys could inflate those split rim tires. The split rims were notorious for blowing off when they were inflating the tire. I understand wanting keep the old trucks correct but safety first. I’d try to find an alternate to those split rims.
1946 1/2 ton
| | | | | Joined: Dec 2001 Posts: 14,522 Moderator: Welcome Centre, Southern Bolters, Legion Hall | | Moderator: Welcome Centre, Southern Bolters, Legion Hall Joined: Dec 2001 Posts: 14,522 | George, had a friend that was airing up a split rim and it blew apart on him. His jaws ended up being wired together for a long time. He "ate" through a straw what seemed like forever. He was really lucky it didn't kill him.............
Sad part is that he worked for Goodyear and a cage was nearby. Like a song says: "when will they ever learn"
So YES, SAFETY FIRST.... shout from the roof tops. | | |
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