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3500 Dually Trucks Discuss topics and issues related specifically to 3500 Dually GM trucks. Please keep engine and drivetrain topics out of this forum and in their appropriate forums.

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Old 08-17-2007, 12:08 AM   #1 (permalink)
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OK...I just have to post this about Dually rear tires

I Know that there has been endless debates and discussions about tires for the rear of our Dually's. I just had to make this post after what I saw today as I got my truck aligned.

So there was a Gas 2002 K3500 Dually getting some new hides. This guy had 265 tires all the way around. No rear spacers. The tires were in physical contact with each other as they put it on the rack. So I was talking with the guy about how long had he had those tires on and I went onto discuss the rubbing issue and he said I have 3 Dually's. All have same tires, All 3 trucks have a combined 450K miles. He hauls everything and from the look of the truck I could not argue the point. I said "Aren't you worried about heat induced blowouts and so on from the constant rubbing?"......he laughed, said that is silly. He said, very politely, that he has heard that talk before years ago and no where has it ever been written that this is a problem. He asked me if I have ever read it? strangely enough...he is right. I have never seen a publication that states this is wrong and dangerous. Of course best common sense says it is not right.

So here is the question, Has anyone read, seen have a copy of any "Official" document that states this to be a risk to tire damage?. I can honestly say in my 15 year plus of dually ownership I have never readabout, witnessed or seen a tire blowout from tires rubbing.

Anyway I thought I would post this as it goes against all what is talked about here. Now...Please do not come on here and call that guy names. He was a pretty sharp fella. He just choses not to believe the hype. BTW...the tires were in excellent shape when removed from the back of the truck. He had 33K miles on them.....Makes you go.....

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Old 08-17-2007, 12:57 AM   #2 (permalink)
astieg
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Good point! I'll be watching, need new rubber like last year....

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Old 08-17-2007, 12:57 AM   #3 (permalink)
kaotik
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that will make a few ppl think a lil bit
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Old 08-17-2007, 11:47 AM   #4 (permalink)
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I just want to emphasis, I am not saying I agree or disagree with his thought process on the tires, I just wanted to post this to open up the question, "Is there an official written rule about this?" I think alot of us would like to read about it. I went to numerous dually sites, Tire/wheel distributors and none of them state anything anywhere about it. However if you call a tire place they "Say" well we have been told it is not a good idea.....When you ask who "Told" them, they do not know.... When you ask if they have ever seen a blow out back from tires rubbing, they have all answered NO.....

As an owner of duallys since 1993, I guess I would like to have this be somewhat official for all of us. I personally will never have my tires touch as a general rule, however I will not be afraid to have them bump from time to time if I have a big load on. I think you are safer having this happen than adding any spacer. This is just my opinion. Either you get wheels made to offer the proper offset or run suitable tires.

But hey what do I know, I am just a consumer like the rest of us.
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Old 08-17-2007, 12:04 PM   #5 (permalink)
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well using common sense, one would think that two tires rubbing on each other cannot be a good thing. unless there is some magic that happens with dually tires, anything coming in contact with something else will be subject to friction. add to that load changes, road conditions, weather conditions, rubber compounds, lateral stresses, etc and your only decreasing the longevity of the tires. whether or not these things will decrease the life of the tire by much is unknown. i dont drive a dually so i wouldnt know, but i think its a good idea for them not to touch.
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Old 08-17-2007, 10:01 PM   #6 (permalink)
WHTDMAX06
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i think of it like this what about an inner tube in a tire they are touching but never rub thru each other i think it may be the same idea. there really arent any forces "rubbing" them.
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Old 08-17-2007, 10:16 PM   #7 (permalink)
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Keep in mind that the tires are theoretically turning at the same rpm's...so there really isn't much friction between the two tires in the back. Obviously when you turn fairly sharp, the outside tire may turn a little more, but basically they are just riding side by side up against each other.
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Old 08-17-2007, 11:33 PM   #8 (permalink)
dwj
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Thats a good one. I guess I really have not seen anything in writing, but I don't think I would be comfortable hooking up 10,000-15,000lb trailer seeing my rear tires squat together and hopping in and heading down the highway. Maybe I'm just a girly man. Anybody else running tires that touch?
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Old 08-18-2007, 12:45 AM   #9 (permalink)
sherr20
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admorris, come on bud, think about it, the outside tire on a dually travels the same speed as the inner tire; they are bolted together!! So they are always doing the same speed.
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Old 08-18-2007, 01:11 AM   #10 (permalink)
astieg
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Quote:
Originally Posted by sherr20;1947986;
admorris, come on bud, think about it, the outside tire on a dually travels the same speed as the inner tire; they are bolted together!! So they are always doing the same speed.
So technically if they do touch it is not considered a 'rub' more of a 'fondle'

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Last edited by astieg; 08-18-2007 at 01:12 AM. Reason: .....
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