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| | | | Joined: Jan 2005 Posts: 305 Shop Shark | | Shop Shark Joined: Jan 2005 Posts: 305 | my new mil truc has 7.5x20 tires i have found a great deal on some 9x20 tires my question is will thay rub on the dule rear if put on the factory rims ???
Last edited by apart hillbilly; 01/27/2010 4:02 AM.
ya I know a few rednecks.Thay all drive chevys to,
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trucks range from 1942 1/2 ton to 1965 fire engine
| | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | They will probably be a little wider than the the rim manufacturer recommends, but I doubt that there is enough difference for them to rub anything. 50 years it was common practice to put 9's in place of 7.50's for extra load carrying capacity. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | Check the Accuride wheel catalog for recommended rim widths and dual spacing for any given tire size. Can be found in this tech tip http://www.stovebolt.com/techtips/wheels/Also check the literature from the tire manufacturer on those tires. The above will give you a good idea if it will work by what is recommended. Then as crenwelge suggest you may get away with it even if not recommended. Grigg | | | | | Joined: Apr 2009 Posts: 67 Wrench Fetcher | | Wrench Fetcher Joined: Apr 2009 Posts: 67 | If those rims are are the same as the ones on my military, the rim width is 6.5. I thought that you could only run a 7.50 or 8.25 tire on them? On my truck anyways, their is enough room to stick your hand between the duals. If the rubbing of the tires is only issue, then I think I might look into 9x20's. I thought you couldn't run 9.00 because it bubbles over and affects the integrity of the sidewall.
This is making me think - what size tube would you use?
1937 Chevy (converted to 4x4)
1942 Chevy G506 1.5 ton 4x4
1958 Mack B model (on Chevy 1 ton 4x4 frame)
1969 Dodge Charger
1987 K30 Crewcab
| | | | | Joined: Jan 2008 Posts: 4,961 'Bolter | | 'Bolter Joined: Jan 2008 Posts: 4,961 | The difference in the sidewall will be hardly noticeable. If you hauled loads every day, it might make some difference. I always made it a practice of using a size smaller tube than the tire...an 8.25 tube in a 9.00 tire. On the original installation, it will make no difference. However if you have a flat and reinstall the tube it will have probably stretched to the point where it will fold. Folds in a tube cause a leak in almost no time. We change our own tires and did for the public as well until the mid 70's. I would venture to say that more flats were caused by folded tubes than by nails. | | | | | Joined: Oct 2009 Posts: 41 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2009 Posts: 41 | I don't know how Kosher it was to do...but I remember helping my Dad rob the wheel rings off of a junker on the farm and put one between the duals. He said it was to add width to keep them from picking up too large of a rock (we had great gravel roads).
I don't see the problem as long as you have a long enough stud to do so. It isn't much, but it may be all you need.
I agree 300% with the folded tube issue. That and tires run with too low of pressure and the tube slips... | | |
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