Dick A
Spokane Valley
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I appreciate the above comments.  As all my driving has been on freeway or good two-lane roads, I don't think I have ever hit a really bad hole. Sandi really carefully chooses the roads she routes us on.
As the front tires are rotated to one rear side or the other and vise-versa, and they are duals, it's apparent that the direction of rotation has been changed on certain tires. I started changing tires when I was twelve years old but there is always something new to learn.
Also, I will have to check the "born on" date of all the tires. Generally, the tires at Schwab move rather fast (I trade at a very busy store) so I don't think they were very old when I purchased them.
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Gale Hawkins
Murray, KY
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This guy who told me this has been at it for 25 years. He called a brand or two that seemed worse about separation but I do not recall the brands but Firestone may have been one name. He was clear that he did not understand why sometimes it was not an issue and other times the tires would separate very quickly. He said he just stopped doing based on what he was seeing. They do local stuff mainly so often they are the only one that ever touches the tires on a lot of the trucks so he knows their history.
A guess would be like bending a wire to break it the greater the degree of the bending the faster it will break. Not being a tire man but having had some belts start breaking on some Michelin tires on a couple old BMW's in the past I assume over time there can be some 'normal' breaking of the steel in the belts but by keeping the rotation the same then they may just kind of work in place.
Reverse the direction of those broken ends of the wires that have began to fail and it could induce other issues perhaps. I read once the Army made the push for non directional steel belted radials so they could move any tire to any position which would be a good thing fighting a war.
The 168 MPH rated Michelin's were directional the best I remember so I am guessing the higher the performance the less success with building a non directional radial? I seldom ever rotated on the BMW's because the front and rears naturally had different wear patterns so rotating them just wore them out faster with less rubber contacting the road while they reseated to the new axle.
One could remount but that would be a lot of work for no gain.
On the subject of separation I am guessing new tires separate like older tires do IF never ran low or overloaded. This stems from the TT tire threads. While I am sure quality is an issue there but I think the load/PSI issue plays a HUGE issue even more than in a MH. Also in the TT cases often the tires are only a few years old at most and some are even new like.
Be it a TT or MH often we read when one radial in a matching set separates that one or more of the others often quickly follow. WHY?
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Dick A
Spokane Valley
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Gale, thanks very much for your additional comments. I appreciate all the information I can get from those with more experience in this situation.
I haven't checked the bad tire that close (it's in a storage bin) but as I recall all the steel belting is still in place. The tire did not blow and is still inflated. I have never seen this before but then I have not dealt with larger size tires that much other than those on my 480 Case backhoe.
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BWhite
Metrowest,Ma
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The bottom line is Toyo isnt the perfect tire the fanatics insist it is !
Just another case of brand loyalty !
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topflite51
In The Desert of Nevada
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Joined: 05/13/2004
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Dick A wrote:Gale, thanks very much for your additional comments. I appreciate all the information I can get from those with more experience in this situation.
I haven't checked the bad tire that close (it's in a storage bin) but as I recall all the steel belting is still in place. The tire did not blow and is still inflated. I have never seen this before but then I have not dealt with larger size tires that much other than those on my 480 Case backhoe. I am from the old school, I do not believe in swapping rotational direction with ANY radial. It used to be an out and out NO NO. Then all of a sudden tire manufacturers changed their tune, with no apparent change in construction. With tires on auto's probably not near as important as with tires on vehicles that are loaded at or near the max. If you wish to rotate from front to rear, have them dismounted and remounted, so the direction they are turning remains the same. This all of course is JMHO, and I will stick to it.
As to your tire loosing it's tread and still holding air, used to happen all the time, especially with Uniroyal's.
Have the other tires inspected very carefully for any evidence of the molding lines in the tread. If there is such evidence across the tread, those tires need to be replaced also. Again, JMHO from dealing with the tire industry for way tooooo many years. It has nothing to do with hitting potholes, especially the ones that exist in Montana.
 David
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topflite51
In The Desert of Nevada
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BWhite wrote:The bottom line is Toyo isnt the perfect tire the fanatics insist it is !
Just another case of brand loyalty ! That really helps.lol
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Jerry B
Ozark Highlands
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Dick A wrote:Last week while driving home on the freeway in Western Montana at about 60 mph I had the tread on my right inner dual tire separate but the tire not blow out. The tires on the coach are Toyo 235/75 – R16 M54’s and are four years old with just over thirty-five thousand miles on them. I have rotated the tire every year, had the front end aligned, and always keep the tire inflated at 80 PSI. The coach has also been weighed and is close to GVWR but not overweight.
Has anyone else had this problem with a Toyo tire? The tread loss did take out my extra sewer hose carrier tube but caused no other damage.
Hi Dick. Hummmm, the right inner dual? I have a theory why this tire position seems to have more failures. I figure a lot of folks drive down the highway with the right side dual "hanging" over the lane onto the shoulder. This shoulder usually is tapered away from the driving lane. The inside dual therefore carries an excessive load. This is my theory and I'm sticking to it. Cheers, Jerry
Jerry B
1996 Dolphin 535,F-53.
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Sully2
Cincinnati
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BWhite wrote:The bottom line is Toyo isnt the perfect tire the fanatics insist it is !
Just another case of brand loyalty !
Bottom line is that they are as good and anyone else's and better than many!
2000 Country Coach Allure; Cummins ISC 330 HP; 71/2 - 8 MPG regardless
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Triker33
Homestead, FL
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Jerry B wrote:the right inner dual? I have a theory why this tire position seems to have more failures.
Where do you get the information or the document, that has the right inside dual has more flats then any other tire position?
In over 17 years having a class A I have only had two flats. A left rear inside dual & right front.
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Triker33
Homestead, FL
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Forum web site caused double post
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