From: rcakitty@verizon.net
Date: Tue Dec 28 2004 - 08:07:36 PST
In the middle '50's when the transportation industry went to the tubeless tire, both Goodyear and Firestone came up with their own solutions. Goodyear used conventional sized multipiece rims,i.e. 20",22" and used an 'O' ring to seal the air. Firestone elected to used a one piece drop center design as we know the truck tubeless rims today. Over time the Firestone design won in the marketplace largely, I suspect, for the reason stated here so often - the simplicity and safety of the one piece rim. They also as part of their design increased the rim diameter by 2.5" from the tube-type norm,i.e. 22.5(20),24.5(22)etc. They also (my guess) had to increase the tire width by 1" in each size to get the same load carrying capacity(size for size because as you probably know tire carrying capacity is, in part, based on air volume) which results in the following equivalents: 9.00x20(10-22.5),11.00x20(12-22.5) - to explain the two sizes in most general 2 1/2 & 5 ton MV use. So IF (after all this) your question is: Can I u
sed tubeless tires on my MV intermixed with tubetype? The answer is: Yes, all you have to do is find the appropriate rims(easier to do for the 5 T than the 2 1/2 T but both possible) I'm done!!! Robert Anderson 12/28
>
> From: "GOTaM35" <GOTaM35@joetrapp.com>
> Date: 2004/12/27 Mon PM 08:55:49 CST
> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
> Subject: [MV] NDCC tubeless tire? Why not?
>
> I have wondered for some time and after reading Ryan's post about his 5 ton
> I have to ask. Why doesn't some one out there manufacture a cheap truck
> tire that is the same basic size at the 9.00 x 20 and 11.00 x 20 NDCC tires
> that will be an equivalent 22.5 tubeless? I believe the members of this
> list alone would buy enough to justify the quantity needed for a run at a
> plant. I know 5 ton tubeless rims are easy and cheap to come by. We have a
> pile of 10 lug rims at our shop in the scrap pile. We have upgraded to so
> many aluminum rims on trucks we have all these "spare" steel rims. I
> suspect the 6 lug that would fit a deuce could be found in junk yards too.
> Is it solely that we MV enthusiast are too cheap? I wouldn't mind spending
> a couple hundred buck for a set on the front of my deuce. It makes me
> nervous walking around those rings.
>
> I am onto something or has this been tried before with out success?
>
> Joe Trapp
>
> PS. Spent a couple hours today working on the M35A4X4 "monster" truck. You
> purist had better watch out :-)
>
>
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