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How much pressure (PSI) should I run in these tires?

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Old 06-10-2014, 07:53 AM
IttyBittyX IttyBittyX is offline
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How much pressure (PSI) should I run in these tires?

" Michelin LTX A/T 2 Load range E tires that are size 265/75/16"

I don't haul much and I don't tow.

How much in the front tires and how much in the rear?

THanks
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Old 06-10-2014, 09:27 AM
EXv10 EXv10 is offline
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Quote:
Originally Posted by IttyBittyX View Post
" Michelin LTX A/T 2 Load range E tires that are size 265/75/16"

I don't haul much and I don't tow.

How much in the front tires and how much in the rear?

THanks
Whatever you like, I run 60 all around with the same setup. The closer you get to their max (80) the stronger they will be.
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Old 06-10-2014, 09:44 AM
IttyBittyX IttyBittyX is offline
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Quote:
Originally Posted by EXv10 View Post
Whatever you like, I run 60 all around with the same setup. The closer you get to their max (80) the stronger they will be.

The STRONGER they will be?

What if I run them at say 80? What happens then?
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Old 06-10-2014, 09:57 AM
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The tires are rated at a specific load capacity at their maximum air pressure. Those will be rated at something like 3400lbs at 80psi. As you lower the air pressure the overall capacity will be reduced. The factory recommendation is 45psi front and 55psi rear. Here is an example from Firestone on what I'm referring to. Scroll down to the Light Truck section and look for your size:

http://www.firestonetrucktires.com/p...Load_Table.pdf
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Old 06-10-2014, 10:05 AM
EXv10 EXv10 is offline
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Quote:
Originally Posted by IttyBittyX View Post
The STRONGER they will be?

What if I run them at say 80? What happens then?

They will be at max strength (more than you need) but it will ride rough and possibly wear in the middle. Click on graph.

Click the image to open in full size.
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Old 06-10-2014, 11:58 AM
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Depepnds on your engine and 4wd vs 2wd...

I run 70 psi all around on my 4wd 6.0 Powerstroke Excursion.

If you run a 2wd V10 truck, you could get away with 60 psi or 65 psi given that such a truck is lighter.
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Old 06-10-2014, 12:07 PM
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I have been keeping mine at 70 psi in my 2wd 7.3L.


***sorry I have the BFG 285's
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Old 06-10-2014, 12:22 PM
00X7.3PSD 00X7.3PSD is offline
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I have the same tires on my 01 v10 Ex. 45psi front and 40psi rear when empty. Anything above that is too stiff for me.
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Old 06-10-2014, 12:54 PM
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Quote:
Originally Posted by 00X7.3PSD View Post
I have the same tires on my 01 v10 Ex. 45psi front and 40psi rear when empty. Anything above that is too stiff for me.
Might just be me, but that almost seems to low to me...
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Old 06-10-2014, 01:43 PM
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Quote:
Originally Posted by 00X7.3PSD View Post
I have the same tires on my 01 v10 Ex. 45psi front and 40psi rear when empty. Anything above that is too stiff for me.
That's only a 2,100 pound load; (lower than C rated tires). Too much heat.
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Old 06-10-2014, 01:48 PM
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Quote:
Originally Posted by Toreador_Diesel View Post
Might just be me, but that almost seems to low to me...
I guess it all depends on the tire and size, according to the graph a 285 tire can handle over 2500 pounds at 45psi, That is 5000 pounds per axle. I have to check my weight slip but I am pretty sure my f250 4x4 with a 5.4 doesn't weigh over 5000 pounds on either axle..
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Old 06-10-2014, 04:34 PM
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Quote:
Originally Posted by Bigpipes 35 View Post
I guess it all depends on the tire and size, according to the graph a 285 tire can handle over 2500 pounds at 45psi, That is 5000 pounds per axle. I have to check my weight slip but I am pretty sure my f250 4x4 with a 5.4 doesn't weigh over 5000 pounds on either axle..
But it's the idea of it, he could have much stronger tires.
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Old 06-10-2014, 04:36 PM
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Quote:
Originally Posted by EXv10 View Post
But it's the idea of it, he could have much stronger tires.
I am agreeing with you on this, something must me wrong Brent..
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Old 06-10-2014, 05:22 PM
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As per my weight slip, my rear axle was 3200 pounds empty and my front was 4000 empty, I am running a 285 tire so per the graph I should be running about 35 in the rear tires and about 40 in the fronts. At those weights why do you think it will generate to much heat ,if the graph is believable that the givin PSI is safe for the weight specified..
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Old 06-10-2014, 07:12 PM
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Rides like a cadillac with 35 lbs in the tires they are soft, poor wear and the look flat. Drove home with new tires thinking WOW, then found out why..

I run 60 all around seems to be a happy medium, but rougher on brick streets, but i like the ride on the hiway.
I have mich ltx ms2 on my 2wd 6.0 psd

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