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10 ply/E rated vs 4 ply rated

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Old 05-29-2017, 08:52 AM
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No, I find them too rough and when I ran them on an earlier 1/2 ton I didn't notice any difference in the towing when I went from 10 ply to 6 ply. I can tell you there is a huge difference between the stock P rated Goodyear tires that have a max pressure of 51 PSI and these C rated tires that are only rated at 50 PSI. Tire manufacturers are making it very difficult to figure out what the tires are because the Goodyears I had were rated standard load which is the same as P and they were rated for 51 PSI. Upon further research I found that on that tire above 35 PSI like all other P rated tires they don't gain any additional load rating like a C rated LT tire. Also if you look at the load rating on the side of the tire when you put a P rated tire on a truck you have to derate that by I think 10%.

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Old 05-29-2017, 04:43 PM
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Originally Posted by Siskiyou
No, I find them too rough and when I ran them on an earlier 1/2 ton I didn't notice any difference in the towing when I went from 10 ply to 6 ply. I can tell you there is a huge difference between the stock P rated Goodyear tires that have a max pressure of 51 PSI and these C rated tires that are only rated at 50 PSI. Tire manufacturers are making it very difficult to figure out what the tires are because the Goodyears I had were rated standard load which is the same as P and they were rated for 51 PSI. Upon further research I found that on that tire above 35 PSI like all other P rated tires they don't gain any additional load rating like a C rated LT tire. Also if you look at the load rating on the side of the tire when you put a P rated tire on a truck you have to derate that by I think 10%.
Yeah it does make it somewhat complicated. I must have the same Goodyear Wranglers you had, the Fortitude H/T's 116T SL 51 max PSI. Load rating wise you would exceed RAWR first even with the derating. But I think we agree these tires make the truck feel like it is floating when towing even when maxing the pressure. I don't see where Toyo offers the C rated H/T tires in LT275/65R18 but they do in the A/T's. I know I want to get these replaced soon to compliment my new Propride.
Old 05-31-2017, 12:43 AM
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I've seen lots of people confusing ply, load rating or LT and in actuality the only thing you need to consider is Load rating. Manufacturers only rate there tires in ply because we as consumers demand it. There are practically zero 10 ply tires out there....even the ones that say 10 ply are not 10 ply. Along time ago it ment something perhaps back during the bias ply days or shortly​ after. Now the ply rating is completely subjective​ as to how HD the company wants us to believe there​ tires are.
At most a LT, E rated or 10 ply tire will only actually have 6 or 7 ply....I say or 7 because there is probably some off the wall tire manufacturer I never heard of who has done it and I'm sure someone will find it.
My (Wild country) tires are only 6 ply and they are E rated....they simply chose not to inflate there ply rating so that the (wild country atr) would still sell.
In closing rules may vary in your area (perhaps your legislation is 40 years behind) but unless you run commercially there's no need to pay for LT or 10 ply as long as the load rating is correct.
And yes to the OP. You will notice a big improvement with tires that are in the proper load range

Last edited by 4.30Screw; 05-31-2017 at 12:45 AM.
Old 06-07-2017, 01:18 PM
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Just replaced the P Goodyear H/T's on my 2016 with E Toyo H/T's. Wow what a difference, the truck is so much firmer and actually has less bounce than before. Only have a few miles on them but they seem pretty quiet and smooth. I did the bed test with the old tires and then with the new tires where you stand on the side towards the rear bumper and push, that right there alone will make you a believer. Haven't towed with them yet, have a 100 mile plus trip coming up in a couple weeks.
Old 06-07-2017, 01:43 PM
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Originally Posted by WHIT66
I just purchased a new set of 10 Ply/E rated on my 2014 FX4 ...just wondering if I will see a difference towing my 6000 lb Jayco travel trailer.
Just wondering, wouldn't this have been the question to ask / research before you made the purchase?
Old 06-07-2017, 02:31 PM
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LT-E tires might handle better than P tires with a load on the truck. It's somewhat subjective.

What isn't subjective though is that the extra weight will decrease braking, acceleration, and fuel economy. This could be a safety concern, and it'll certainly cost you more money at purchase time and every time you fill up the truck.

That's why almost every half ton truck in the U.S. uses P rated tires. LT-E is overkill.
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Old 06-07-2017, 03:02 PM
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Originally Posted by WXman
LT-E tires might handle better than P tires with a load on the truck. It's somewhat subjective.

What isn't subjective though is that the extra weight will decrease braking, acceleration, and fuel economy. This could be a safety concern, and it'll certainly cost you more money at purchase time and every time you fill up the truck.

That's why almost every half ton truck in the U.S. uses P rated tires. LT-E is overkill.
Also your last statement could be based on P rated tires are much cheaper to provide as original equipment and most people who buy half ton trucks do not tow over 5K lbs.
Old 06-14-2017, 05:48 PM
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Originally Posted by seachaser186
Also your last statement could be based on P rated tires are much cheaper to provide as original equipment and most people who buy half ton trucks do not tow over 5K lbs.


I thought the weight police concluded it was illegal to tow over 5K lbs with a half ton ? Probably over 80% of the F150's on the road have all the original paint intact on their hitches and have absolutely no need for the additional weight and expense of an LT tire and those that need an LT tire from the factory can order the Heavy Duty Payload Package.


From personal experience, I can confirm that towing in upper manufacturer approved weight limits is improved with LT tires and the unloaded ride is harsher which is an acceptable trade-off for my use.
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Old 06-14-2017, 10:53 PM
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Or just do what I do, and use P tires for daily driving and LT tires for heavy towing.
Old 06-15-2017, 12:52 AM
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Keep in mind that some of the stock sizes are available in LT C or 6 ply rated. I switched to 6 ply rated tires and I didn't notice any difference in braking, ride or sound. What I did notice is a lot more stability towing especially cornering.



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