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Old 05-01-2014, 09:08 AM   #11
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With properly set up hitch and sway control with the right tire pressure and I really haven't had any issues. Nothing I'd describe as "soft". Running these tires with about 45 lbs does seen to feel a little more solid however. I'm only pulling 22' or so at about 4500 lbs and 475 ish TW. Longer rigs would probable see more difference.
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Old 05-01-2014, 09:21 AM   #12
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I just replace the original P275x65R18 Michelin ltx AS's on my 08 tundra. I towed TT and 5th wheels from 4500 - 9000 pounds all over the country with zero problem. The had 47,000 miles and decent tread left. I only replaced them because of age. Started showing cracks in sidewalls after 6 years. I bought Michelin lt275x65 18E AT. Love the look and peace of mind of having LT tires tho my P's performed well.

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Old 05-01-2014, 09:42 AM   #13
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This thread has me curious now. I have a 2012 Silverado 1500 Crew Cab. The tires on it are Firestone Destination LE tires. I'm trying to figure out if the LE is in between P & LT or something else. Load rating is 2469 per tire and max pressure of 44 psi. I am pulling an Avenger ATI 27bbs. Tongue wt over 600 lbs & TT weight just under 8000 lbs. I don't have any problems with my tires while towing so I think I am fine with them.

Does anyone have any insight?
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Old 05-01-2014, 10:03 AM   #14
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Originally Posted by mlong View Post
This thread has me curious now. I have a 2012 Silverado 1500 Crew Cab. The tires on it are Firestone Destination LE tires. I'm trying to figure out if the LE is in between P & LT or something else. Load rating is 2469 per tire and max pressure of 44 psi. I am pulling an Avenger ATI 27bbs. Tongue wt over 600 lbs & TT weight just under 8000 lbs. I don't have any problems with my tires while towing so I think I am fine with them.

Does anyone have any insight?
Look on your tires and see what ply rating they are.
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Old 05-01-2014, 10:32 AM   #15
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Originally Posted by dcheatwood View Post
I just replace the original P275x65R18 Michelin ltx AS's on my 08 tundra. I towed TT and 5th wheels from 4500 - 9000 pounds all over the country with zero problem. The had 47,000 miles and decent tread left. I only replaced them because of age. Started showing cracks in sidewalls after 6 years. I bought Michelin lt275x65 18E AT. Love the look and peace of mind of having LT tires tho my P's performed well.

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X2 Same here
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Old 05-01-2014, 12:11 PM   #16
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tires

So much for discussion... P rated tires were designed for comfort and maybe for some casual towing short distances and not for long distance highway towing. Softer sidewall collapses and fosters more heat build up. This leads to a breakdown of the rubber compound. If you are doing any real towing, I strongly urge you to go with the heavier LT tire. you will quickly get used to the stiffer ride, better handling, better cornering, better tread life etc... As far as fuel economy goes, there should be no difference. The LT tire is stiffer and offers much less rolling resistance than the factory P rated "mush" tires. If you are worried about safety and performance, I feel there is really no choice but the LT's. We tow thousands of miles each year and have never had a problem with a blow out. I won't run with anything else.
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Old 05-01-2014, 12:42 PM   #17
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so rlocicero the manufactures are putting trucks on the road that the tires are going to blow if you load them to there max. In my case I do not have a choice but to run P tires as no one makes a tire in my size that is LT rated. So I guess I will not tow my trailer until someone comes up with an LT tire. I have also towed thousands of miles and not had a blowout does that prove that the P rated tires are ok?
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Old 05-01-2014, 01:20 PM   #18
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This thread has me curious now. I have a 2012 Silverado 1500 Crew Cab. The tires on it are Firestone Destination LE tires. I'm trying to figure out if the LE is in between P & LT or something else. Load rating is 2469 per tire and max pressure of 44 psi. I am pulling an Avenger ATI 27bbs. Tongue wt over 600 lbs & TT weight just under 8000 lbs. I don't have any problems with my tires while towing so I think I am fine with them.

Does anyone have any insight?
If you mean the 265x65 18 stock tire size, then they are NOT LT, they are P-rated tires.
From what I have seen, on 1/2 ton pickups, the manufacturers are putting on P-rated tires (at least for GM and Ford and what I have seen on the lots).

However, in 18" tires, you do have a decent chance of finding LT tires, if you want.
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Old 05-01-2014, 01:23 PM   #19
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We towed our Roo from the Toronto area to PEI and Nova Scotia last summer. Fully loaded, it runs about 5200# with a tongue weight around 560#. My F-150 has P-rated Bridgstone Dueller A/T Revo 2 tires and I had no issues at all on that trip. I keep them at 35 psi front and back as specified on the sticker on my door.

Does the F150 with the max. towing package come from the factory with LT tires or P? I bought it used and it had the current aftermarket tires on it. The previous owner towed a small 5er because it has the rails mounted in the bed.

If I were towing a 5er, I'd probably want LT tires, but for towing my Roo the P-rated tires seem to work just fine. When they are due to be replaced, I'll consider LT tires if they are available in my size, but I'd only switch if there isn't huge difference in price. What does it typically cost to upgrade from a P-rated tire to a LT-rated tire for the same size tire?
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Old 05-01-2014, 01:28 PM   #20
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Originally Posted by rlocicero View Post
So much for discussion... P rated tires were designed for comfort and maybe for some casual towing short distances and not for long distance highway towing. Softer sidewall collapses and fosters more heat build up. This leads to a breakdown of the rubber compound. If you are doing any real towing, I strongly urge you to go with the heavier LT tire. you will quickly get used to the stiffer ride, better handling, better cornering, better tread life etc... As far as fuel economy goes, there should be no difference. The LT tire is stiffer and offers much less rolling resistance than the factory P rated "mush" tires. If you are worried about safety and performance, I feel there is really no choice but the LT's. We tow thousands of miles each year and have never had a problem with a blow out. I won't run with anything else.
As someone else noted, you are saying the manufacturers are rating a vehicle for safely towing X-number of pounds, while loaded up to a maximum of X-number of pounds on tires that will not carry the load safely?

Wondering where all the lawsuits are; especially in this day-and-age of suing for any reason.

I do believe that the manufacturer has to pass Federal motor vehicle safety specs and a who lot of other safety requirements. I know my 2013 Silverado, with the Max towing package came with P-rated Goodyear LS (SL rated tires). I changed them to XL all-terrain tires due to the backroads I travel.)

I will add that if they had made a LT tire in my tire size (275x55 20), I would probably have purchased them, but not due to towing, but for the triple sidewall strength that gives me a stronger, harder to cut sidewall.

Would love to see some empirical proof that P-rated tires are basically unsafe to use for towing over long distances since there are a lot of people out there towing on P-rated tires on 1/2 ton pickups, small SUVs, Minivans, etc.
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