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Old Oct 23, 2010 | 08:40 PM
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Minimum Tire Pressure

I am a new owner of a used 2001 7.3 Diesel. I can't seem to locate information about minimum tire pressure. I am looking for a smoother ride, and typically am driving with an empty truck bed. Appreciate your help.
 
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Old Oct 23, 2010 | 09:20 PM
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If everything is stock, you can follow the information on the driver's side door jamb. There should be a sticker there with tire inflation info.

I run mine at 65#s but am running 315s.
 
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Old Oct 23, 2010 | 09:25 PM
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Originally Posted by Texas Outlaw
If everything is stock, you can follow the information on the driver's side door jamb. There should be a sticker there with tire inflation info.

I run mine at 65#s but am running 315s.
Yeah, I looked for the sticker before I posted my question, for some reason it's not there. I appreciate your help!
 
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Old Oct 24, 2010 | 10:50 AM
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I live in a small town and don't usally drive to far or tow heavy.I run 40 in the back and 60 up front.If i go on a trip then i set everything back up to 80 for better mpg.
 
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Old Oct 24, 2010 | 05:48 PM
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If you are totally stock 265-75 16 E load tires... door sticker has 60 psi front/70 psi rear max load.. I run 60 front always, 60 rear with little or no load... increase pressure 5-10 psi for heavy loads..
 
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Old Oct 24, 2010 | 06:02 PM
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Originally Posted by F3504ME
If you are totally stock 265-75 16 E load tires... door sticker has 60 psi front/70 psi rear max load.. I run 60 front always, 60 rear with little or no load... increase pressure 5-10 psi for heavy loads..
I think for 2WD it is 55/70, I remember that's what mine said. I run 70 all around for gas mileage.
 
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Old Oct 24, 2010 | 07:19 PM
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I have a 2002 F350 SRW 4x4 7.3, and my tire pressure sticker is posted on the inside fuel door. My sticker reads 55 PSI Front/ 80 PSI Rear. Your truck may have a different instruction sticker. You can also look on the tires they usually have cold PSI information on the tire.
 
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Old Oct 24, 2010 | 07:24 PM
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Originally Posted by blue1ton
I have a 2002 F350 SRW 4x4 7.3, and my tire pressure sticker is posted on the inside fuel door. My sticker reads 55 PSI Front/ 80 PSI Rear. Your truck may have a different instruction sticker. You can also look on the tires they usually have cold PSI information on the tire.
The info on the tire is only for maximum inflation pressure on that specific tire, but it doesn't tell you what you should run it at for the vehicle its on.
 
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Old Oct 24, 2010 | 07:32 PM
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That's true. I was using the tire pressure information as a reference point incase the factory sticker is not on the vehicle.
 
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Old Oct 24, 2010 | 07:35 PM
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Old Oct 24, 2010 | 08:15 PM
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Originally Posted by PMPeine
I am a new owner of a used 2001 7.3 Diesel. I can't seem to locate information about minimum tire pressure. I am looking for a smoother ride, and typically am driving with an empty truck bed. Appreciate your help.
If you are running the 265-75/16 tires, then you can safely run 50 psi and still be able to carry 4670 lbs on the rear axle. I would not run less than 55 psi on the fronts with the diesel engine due to the weight. E rated tires can handle up to 80 psi, which allows about 6830 lbs of capacity on the rear axle. So if you are looking for a softer ride then you can run 50 psi on the rear and then pump them up when you are carrying a load.

70 psi gives you about 6084 lb capacity on the rear axle.
 
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Old Oct 24, 2010 | 11:46 PM
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Originally Posted by N4TECguy
I think for 2WD it is 55/70, I remember that's what mine said. I run 70 all around for gas mileage.
Same truck here. I hardly ever have any weight in the truck and run 55 front, 50 rear, and I still can drop some pounds on the rear axle to get more even tire wear. If I'm loaded I got to 80 on the rear.
 
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Old Oct 25, 2010 | 02:08 AM
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I run 60 front and 55 rear. Anything more in the rear while empty and I bald the center of the tires plus the rear end has more bounce/sway to it going down the highway.
 
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Old Oct 25, 2010 | 08:02 AM
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The tag on the door jab is max pressure for the tire size listed, which is a terrible ride unloaded. I usually run 55lbs front and rear empty and go up to 65 pulling my 5th wheel. Tires wear good and handles great, it may take a little expermental with your truck.
 
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Old Oct 25, 2010 | 12:48 PM
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I've got 285/75R16's on my 02, D-rated tires. I'm running 60 in the front, and 45 in the rear. When I put a load in the bed, I'll air them up to 65 all around, which is the max for these tires. The ride is better than when I had the stock 265/75R16's on the truck. For those, I ran 70 in the front, and 55 in the rear. I would air them up to 80 when I put a load in the truck.
 
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