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Steer Tires
I’m running Toyo Tires on the bus it had new Toyo (M154) 315/80R 22.5 steer tires, The rear had some off the wall tires on drives and tags, I replaced the drives 4 years ago with Toyo (M144a) 315/80R 22.5 , Both Toyo tires have the same weight rating (single 10,000lbs) (Duel 9090lbs) on line the fronts M154 say steer. I want to rotate fronts to Tag and put new front tires on, What’s the difference??
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12 Replies
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The worst place to put old possibly bad tires is on the tag. In my experience any tire with an issue ranging from uneven wear to cupping and other problems gets eaten alive quickly in the tag position.
I have no idea why.
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The front tires are in good shape around 4 years old,My tag’s weight 10,140 lbs, but what or is there a difference between steer tires and drive tires??
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On my 97 all tires were identical Michelins.
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I’m with Jon, but I’m not sure why. Used to rotate used steers to tag until a 4 year old michelin that had gone from steer to tag blew causing over $13,000 damage.
2005 XL Thompson Coach
Rarely tow anything behind us.
Sold: 1993 Liberty that we loved for 12 years. -
Joel, do you have any pictures of the damage that the blow out caused? Was it body related or more mechanical damage?
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There is a difference in steer and drive design in tread which is important for tractor trailer operations. The steer can be used in the drive if you are doing mainly road driving, The commercial operators must have drive tire that will give good traction in varying road conditions they encounter delivering their cartage.
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I pulled up the specs on the Toyo website and the 153’s are a true 10,000 lb tire can be used in any position,the 144’s is 9090 lb tire said it can be used in any position?
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I personally have seen the scope of damage from a tire failure and over the years owners have posted pictures and descriptions. The damage can range from a simple body panel damage or loss, to in an extreme case air bag, brake chamber, more serious body damage including things like a radiator to loss of the coach.
Even a simple loss of air as opposed to a sudden blowout can create damage, such as the loss of a wheel, or maybe even a fire it is is an undetected inside drive tire.
There is a lot more to tires than that they are black and hold air.
Jeff and Lindsay
91 Marathon XL -
It was a long time ago and the photos went away when I got an insurance check but it was a pita.
Very little external body damage, basically confined to fender lip. My webasto system base is mounted to the floor of the 45′ coach just behind the left tag. Bent the steel floor under the webasto, severed coolant lines, broke webasto piping behind bedroom wall, broke the marble floor in bedroom.
Occurred at 75mph indicated.
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Thanks Joel. I had no idea that kind of damage could come from a blow out. I assumed only the fenders were at risk.
1984 96" with 8V92TA
(remodeled Liberty Coach)
Greenwood, MO -
Why would a great looking 5 year old Toyo tire with 20,000 miles even wear never curbed blow out?? so replace the tags with new Toyo’s and leave the steer alone??
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There is no answer to your question Art.
Why would a set of tires with minor cupping on the steers, go on the tag and in less than 1,000 miles be down to the steel belts at the area of cupping?
Mileage on tires is almost a useless benchmark. If the tire was run at low pressure an outside inspection would make the tire seem perfectly fine. But an inspection of the inside liner might show a distinct black mark around the sidewall to prove it was run at low pressure, got heated significantly, possibly damaged the belts and is a potential candidate for catastrophic failure. It makes no sense because the tag has the lightest loads, but my personal experience is if I want to remediate a tire I put it on the drive.
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