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Old 01-02-2013, 04:58 PM   #11
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Originally Posted by leencharlotte View Post
I have a bumper pull myself and when not towing i use a lower air pressure and have not really noticed a difference. My original BF's wore out with 22-23k as well. The m/s2 are LT and rated for 70k
My tire size is 255/70R18 - When browsing I don't see a rating id as 'D' or 'E', rather a number like 112, 114 or 124 -- I may need to go with 265/70R18 ?

Then there's the issue of my wheels being able to handle the higher pressure. Are your wheels similar to mine?
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Old 01-02-2013, 05:46 PM   #12
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The 112,114 & 124 is the load index of the tire at max pressure. A 114 tire is 2601 lbs and a 124 tire is 3261 lbs per tire at max pressure.

I also see a alternate size possibilty of 275/65r18 for your truck and I'm asking tire rack to see if the outside diameter is the same.

IMHO Kuhmo and Hankook are good tires for the money. We are starting to see quality issues with Michelin as they get about halfway thru their life then you have to jump thru hoops to get Michelin to help.
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Old 01-02-2013, 05:53 PM   #13
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I have sr-5 aluminum wheel like your and tire place told me they were good to go Having said that i run 35-40 empty and 50 towing, i dont need all 85psi. That would probably be a rough ride

If you searching by vehicle LT wont come up due to door jamb saying "P". Try to search by size. My tires are 275/65r18, i am not sure if they carry the lt in your size
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Old 01-02-2013, 06:05 PM   #14
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Tire rack confirmed that they are same outside diameter so hopefully that opens up some additional options.
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Old 01-02-2013, 07:23 PM   #15
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I'm kind of liking the Kumho Road Venture AT Tire P265/70R18.
(Son-in-law is a big Kumho fan.)
or
Hankook DynaPro ATm Tire P265/70R18
or
Nitto Terra Grappler Tire P265/70R18
or
BF Goodrich Rugged Terrain T/A Tire P265/70R18

Until I upped the size to a P265 some of these were not an option.
As I see it the 265 is but a bit wider than my 255...

All of the above have the load index of 114 which is better than my OEM tires. ( I think I see that I have not been running enough air in my old ones. )

This has been a good learning experience for me -- THANK You to all for help/advice!!!

Happy Camping!!
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Old 01-02-2013, 07:24 PM   #16
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PS - Come on down to Lake Ouachita (wash-it-ta) in Arkansas for a beautiful view!
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Old 01-02-2013, 07:45 PM   #17
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If your driving any truck in my opinion you should not have a "P" tire you should at least have an "LT". To all my friends in the U.S. are there not state laws about your vehicle should have with regards to gvw on the truck and what your pulling..?

I know up here if DOT catches you the fines are large..!
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Old 01-02-2013, 08:05 PM   #18
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If your driving any truck in my opinion you should not have a "P" tire you should at least have an "LT". To all my friends in the U.S. are there not state laws about your vehicle should have with regards to gvw on the truck and what your pulling..?

I know up here if DOT catches you the fines are large..!
I agree with the lts.
I havnt heard about the dot gvw enforcement around here, I think they need to and on trailer gvrw, and lights, proper load restraint and the list goes on and on. You see a lot of junk on the road sometimes.
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Old 01-02-2013, 08:36 PM   #19
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OK Question.....If one or all of the US truck manufactures recomand towing with "P" rated tires based on the equipment that is on the truck that is built by them would you disagree with there design and engineering?....I do have a reason for asking this question and that is as follows:

I have a 2008 Chevy Heavy Duty 1/2 ton pick-up, it is called the "Vortec Max". This truck came from the factory with a 6.0 V8 gas engine, 4:10 rear, heavy duty 4 speed trasmission, factory brake controller, heavy duty tow package. The brakes on the truck are the same brakes that are on the 2500 HD pick-ups, NOW here is the kicker, the tires on the truck are "P" rated tires from the factory, the truck is rated to tow 10,500 lbs, now before I sign on the dotted line i had the service department call GM and question everything about the way it was equiped and it's weight rating and it was comfrimed that the tire where in fact the correct tires for the design and engineering of this truck.

Now I have towed a 34 foot FR 8314ss and have had no problems with the tires or handling with this truck, and just this past week I bought a new 31 foot 5th wheel and tow the 5th wheel from "State College" to Hanover PA with this same truck and the same equipment and had no problem with the way it handled. I increase the tire pressure to 44 psi before picking up the camper.......But I will tell you this I do agree BUY TRUCK TIRES FOR A TRUCK IF YOU ARE GOING TO TOW, I am checking into "E" rated tires for my truck, I look at it as a safety net with me towing I have all of you in mine while towing I need to look out for your safety as well......
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Old 01-02-2013, 09:38 PM   #20
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If you look on the side wall of the tire it will say what it is rated for weight wise IE: how many pounds it is rated for. This is where the math kicks in, the weight on the tires is the weight of the truck and anything you are putting in the box regardless if it is a camper or 5th wheel pin. "P" tires are Passenger tires, "LT" stands for Light Truck. BTW increasing your pressure does nothing for load rating or what you can haul.

Your truck may be rated to "TOW" 10,500 but what is the load rating on the tire? What is the weight of the trailer on the hitch? Factor in fuel, water, food, passengers and anything else, weight of the truck, weight of the trailer and remember there is a difference between wet and dry weight.

Does it exceed your tire load rating?

The last question is a personal one, if put in an emergency situation of braking or having to turn what tire would you like under your truck??

Buy what you like but I make sure I always lean to the side of safety and something that someone said to me was that the only thing between you and the road is that little section of rubber those few square inches that contact the road.

I like your choice to upgrade to "E" tires..!!
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