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Old 12-08-2010, 04:38 PM   #1
barmar
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Tire Issue

Hooked up our 'new' to us Montana and noted that I have a tire issue---have LT235/85R16 tires with one 3/8" spacer each side and under little or no payload tire spacing/separation ok but when 5th hooked up tires on both sides are making contact. Talked to several dealers and none recommended/endorsed use of spacers and won't install them citing liability issues and suggested likely problems with lug nut fit/loosening and possible wheel loss plus use of spacers places too much load/stress on lug nuts when under load. Recommended solution was new/different tires (x6) LT215/85R16's. Comments please.
Also, which is deemed to be the better tire, TOYO OPEN COUNTRY or MICHELIN LTX M/S?

 
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Old 12-09-2010, 02:43 PM   #2
scductman
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Barmar I don't understand why you have 3/8" spacers behind the wheels there should be no need for them and they might cause a problem with the wheel coming loose also I changed my tires 2yrs ago to LT235/85r/16s and have plenty of room between them sitting or hooked up to the truck. As far as I can tell there is no difference in spacing hooked or unhooked.
bobby
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Old 12-09-2010, 05:06 PM   #3
barmar
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'scductman' Thanks for the reply. I don't get it either, unless it's the rims---I have American Eagle Aluminum Alloys(6 in) but really shouldn't be a problem. Will try boosting the tire pressure to about 75 psi---from about 60 psi--tires are rated for 80 psi. This may help but if not, will reluctantly go for 215/85R16's (original equipment) on the rear and perhaps 245/75R15's on the front.
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Old 12-10-2010, 12:59 AM   #4
camper4
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I would put them to the 80psi no matter what. The load rating on the tire is when they are at max psi. 80.
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Old 12-10-2010, 02:40 AM   #5
CamillaMichael
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quote:Originally posted by camper4

I would put them to the 80psi no matter what. The load rating on the tire is when they are at max psi. 80.
Agree....
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Old 12-10-2010, 02:53 AM   #6
bncinwv
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Those tires have to be at 80psi to achieve the load rating required for your rig!! No options on inflation pressure for that rig (had one prior to our current rig). Many on the forum have opted for Transforce or BFG Commercials. Do a search on tires and my advice is to pay particular attention to the recommendations of LonnieB (I think he recommends about four or five different brands of LT's or Maxxis ST's, (he is a tire dealer with vast experience and expertise pertaining to all types of tires, including trailer tires). Be sure you educate yourself (it is ultimately your decision) and are able to make a decision that you are comfortable with.
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Old 12-10-2010, 03:02 AM   #7
CamillaMichael
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Quote:
quote:Originally posted by bncinwv

Those tires have to be at 80psi to achieve the load rating required for your rig!! No options on inflation pressure for that rig (had one prior to our current rig). Many on the forum have opted for Transforce or BFG Commercials. Do a search on tires and my advice is to pay particular attention to the recommendations of LonnieB (I think he recommends about four or five different brands of LT's or Maxxis ST's, (he is a tire dealer with vast experience and expertise pertaining to all types of tires, including trailer tires). Be sure you educate yourself (it is ultimately your decision) and are able to make a decision that you are comfortable with.
Bingo
Bingo, there have been a couple of our members state they inflate to lower range than their tire's max psi. Can't speak for them/their reason, but some may be thinking about how vehicle air pressure is sometimes lowered to provide a softer ride. I am with you, if the tire's max pressure is stated as 80psi, that is what I set them at.
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Old 12-10-2010, 03:16 AM   #8
bncinwv
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Michael,
If the tires are rated at 110 psi, I would agree with the lowered pressure, provided that the load capacity provided is sufficient, as a matter of fact, I do that with our 614's, they are set at 100 psi instead of the max 110 psi (based on load inflation table). With the LT's and the ST's and the max 80 psi needed to provide the rating of +3000 pounds, even then, most are stretching the load capacity with their respective rigs. I may have overstepped my bounds, but I know on our 3400 the tire rating was borderline (and I have the flat tire experiences to reinforce this!). I guess I wandered from my usual statement that it is a personal decision, but I am having major qualms knowing that someone is out there with under-inflated tires and risking damage to themselves as well as their rigs!! I do agree with you on the 80 psi!!
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Old 12-10-2010, 04:46 AM   #9
SlickWillie
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I'm thinking the spacers are there because they put the wrong offset rims on the rig.
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Old 12-10-2010, 05:07 AM   #10
8.1al
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A 215-85/16E tire on a dually gives you a load rating of almost 10,000 lbs. at 80 psi. If you are not carrying that much weight, why would you want to put up with the horrible ride? It hurts nothing to use a lower pressure according to you real weight
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Old 12-10-2010, 05:27 AM   #11
bncinwv
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Duhhhhhh, first, give me a minute to extract my foot from my mouth, okay, now that that is done, let me state that I was referring to the trailer tires and obviously did not fully understand the original post. I still stand by the pressure statement for trailer tires, but will not offer an opinion on the TV tires.
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Old 12-10-2010, 08:32 AM   #12
mhs4771
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Both my previous 2005 and new 2011 call for 70 psi front, 65 psi on the rear duals. There isn't much room for putting larger tires on the duals, so your best bet would be to go back to the OEM size on the rear because if you're touching or very close you're looking for trouble. I did put a larger tire on the front of the 2005, think it was a 245/75, had the same OD as the 215/85 on the rear so it worked with the 4x4.
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Old 12-10-2010, 03:25 PM   #13
scductman
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Guys I also thought he was talking about the rig. after rereading the post I to see where the problem is It has to be in the spacing on the aftermarket wheels. my factory wheels has lots of room even when loaded. but you still can try the pressure at 80psi. I dont like the spacers between the wheels with a load.
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