tire load capacity
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Joined: Aug 2010
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From: Cincinnati, OH
tire load capacity
I just picked up 2 used load range E tires for my 88 e350 cutaway utility body dually. The truck has a GVRW of 10,500. When I took it on a scrap metal run it was 6,420 empty. With all my tools and a load I doubt I'll ever have it over 10,000 pounds. The front tires that are on the truck are a little dry rotted. I got the used tires thinking I just had to make sure they were 10 ply. The tires on there now are rated for 3,080 pounds. The new ones are rated for 2,680.
My buddy that works for a tire place says there fine as long as there E rated. I just want to make sure there alright for this heavy of a truck. I was planning on running them at around 60 psi. I don't know how much that lowers the load capacity. I'm guessing just sitting there the weight will be fine. I was going to take it to a scale that weighs front and back seperate. I'd like to put new tires on it first though I don't trust the ones that are on it. When they rate the tires do they take into account when your stopping the weight shifts to the front? If there not good enough for the van I'm assuming I can put them on my F250.
My buddy that works for a tire place says there fine as long as there E rated. I just want to make sure there alright for this heavy of a truck. I was planning on running them at around 60 psi. I don't know how much that lowers the load capacity. I'm guessing just sitting there the weight will be fine. I was going to take it to a scale that weighs front and back seperate. I'd like to put new tires on it first though I don't trust the ones that are on it. When they rate the tires do they take into account when your stopping the weight shifts to the front? If there not good enough for the van I'm assuming I can put them on my F250.
Post Fiend
Joined: Feb 2009
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From: Ottawa, Ontario
On my 11,000 pound motorhome, i'm running on 6 Michelin LTX M/S2 tires, Load Range E and aired up to maximum psi witch is 80psi, at the front, and 70psi outer tires and 67psi inner tires at the back.
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Senior User
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From: Cincinnati, OH
Why do you run the outter tires higer? I thought you want them as even as possible so they get even traction. I've never owned a dually before.
While working on the brakes todays I noticed the inside of the rim says max psi 65. That makes no sense that a rubber tire can hold more air than a metal rim. Does anyone know why this would be?
While working on the brakes todays I noticed the inside of the rim says max psi 65. That makes no sense that a rubber tire can hold more air than a metal rim. Does anyone know why this would be?
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
The roads surface is never even, you always want the inner tires a 'lil bit less psi so all 4 rear tires wear out at the same pace and wear out evenly and both carry the same load.
If you run both tires at the same psi, the inner tire will always wear down first, and run hotter because it's carrying more weight.
My rims also say 65psi. Back then they didn't have tires that can hold much more than 60-65psi for these rigs so that's what they stamped on the rims. Don't worry at all about the rim. That's only stamped there from the factory to remind people to keep there tires inflated at that. Modern tires can hold alot more psi so go by the tire it's self, not what the rim says.
If you run both tires at the same psi, the inner tire will always wear down first, and run hotter because it's carrying more weight.
My rims also say 65psi. Back then they didn't have tires that can hold much more than 60-65psi for these rigs so that's what they stamped on the rims. Don't worry at all about the rim. That's only stamped there from the factory to remind people to keep there tires inflated at that. Modern tires can hold alot more psi so go by the tire it's self, not what the rim says.
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Senior User
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From: Cincinnati, OH
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Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
2680 pounds x 6 (6 tires) = 16,000+ pounds.
No need to worry at all about the load capacity on those tires.
No need to worry at all about the load capacity on those tires.
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