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Old 02-19-2015, 09:52 PM   #1
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New Tires - Advice?

Hi Everyone,

My TV is a Toyota Tundra pulling a 5,500 pound trailer. I am due for new tires and I have settled on the Michelin LTX M/S2. Any advice to get into the E rated tires? I haven't had many issues with sway on the highway in the past. Just curious if anyone has found the E rated tires to be a better ride for towing and acceptable for everyday driving. I likely drive 90% of my miles without the camper attached.

Thanks for the advice in advance.
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Old 02-19-2015, 10:24 PM   #2
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I would go for the C rated LT tires. Your rims cannot handle the 80lbs pressure. Stay away from the P tires.
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Old 02-20-2015, 07:00 AM   #3
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When I got the LTX MS/2's they were only available in the E rating in my size. Figured the extra strength of the E tire over the C will only be a good thing when hitting pot holes and road debris.

Michelin said that running them at 48psi would match the weight rating of my take-off P tires. But I prefer to run them around 60psi. Maybe 65 psi in the rear.

The Alloy wheels are rated for weight. I couldn't find a pressure rating for them. Have been told that alloy wheels can take up to 80psi, but that was just another internet opinion. So far the wheels haven't been a problem.
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Old 02-20-2015, 08:48 AM   #4
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Talk to a competent tire shop. My son put E rated tires on his Titan. Says they handle better.
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Old 02-20-2015, 09:30 AM   #5
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I have drug both TT and enclosed cargo trailers from west Texas to both the Atlantic and Pacific oceans, and from the Gulf of Mexico to Canada, with the P-series tires on my F-150, with nary a tire problem of any kind. So when these Michelins are worn down a bit more, I plan to replace them with the same size of Michelin P-Series tires.

LT tires in load range C have less weight capacity than the same size of your P-series tires. And LT tires in load range E are very heavy, adding to unsprung weight, with no added benefits if you don't overload your truck.

My stock P-series Michelins have weight capacity of 2,271 pounds, or 4,542 pounds on the rear axle. The rear axle of my 4x2 is rated for a max of 3,850 pounds. So my P-series tires have way more weight capacity than I need unless I overload the truck with more than 4,500 pounds on the rear axle.
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Old 02-20-2015, 10:08 AM   #6
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Quote:
Originally Posted by caissiel View Post
I would go for the C rated LT tires. Your rims cannot handle the 80lbs pressure. Stay away from the P tires.
He would run close to the same pressures as before. Just because it says 80psi MAX does not mean that they have to be filled to MAX!

Use the tire/weight inflation guide for the tire and air up properly.

I am a big fan of getting rid of soft tires! See if they have your tires in a D i think it would be a good compromise.
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Old 02-20-2015, 11:56 AM   #7
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My nephew went for a drive on wood roads with his new GM and had to walk home. Cut 2 tires 5 miles in the woods. I would not tow anything with a P tire on my 1/2 ton period. They are now on trucks for a car like ride. I have seen to many torn out fender on trucks towing heavy trailers. If you are going to load a truck like a car they will do but a truck gets loaded to often for my requirements. Had P tires on a ranger 1/4 ton and they turned on the rim when I did an emergency stop with trailer in tow.
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Old 02-20-2015, 12:03 PM   #8
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The light weight of your trailer and 10% usage don't require E-rated tires and would cause a rougher ride 90% of the time.
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Old 02-21-2015, 08:50 PM   #9
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LT tires of E-10 plys is what you put on a 3/4 ton or 1 ton truck.

Stick with P's on your vehicle. They'll do you a good job without the rougher ride.
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Old 02-22-2015, 08:24 AM   #10
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I keep hearing about a rougher ride. And that's probably true if the road is full of potholes and otherwise very rough.

But on the more usual pavement, I would describe the ride of my LT-E's as "crisp" not "rough". You do hear the cracks in the pavement more and slightly feel them. But it doesn't bother me.

A lot of this is personal preference. I prefer the crispness to mushiness.
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Old 02-22-2015, 10:07 PM   #11
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I've used LT " E tires on a Ford and a GMC 1/2 ton truck but always went back to a P or found a LT C tire.

A word of caution on P tire capacity use on a truck or trailer.
Fed regs require a P tire to have its capacity derated by dividing its capacity 1.1...in other words a 2400 lb rated P tire is now rated at 2181 lbs capacity.

I use LT265/70-17 load range C on the wifes 1500 chevy crew cab 4x4. OEM was the same size P tire. The C LT has plenty of sidewall stiffness for hauling heavy or pulling trailers.
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