Tire pressure
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Junior User
Joined: Mar 2013
Posts: 77
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From: Dingmans Ferry, PA
Tire pressure
I have a 99 7.3l single cab standard bed single rear with lt285/75r16 load E retreads from tread right tires and I don't tow anything it's just my daily driver. I don't have a door sticker so I was wondering what the right tire pressure was for these tires. Thanks allot guys.
Kevin
Kevin
Got Data?
Joined: Dec 2012
Posts: 4,242
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From: Lake Stevens, WA
If you can run 'em at 90% empty and get good wear, that's what I'd do. My experience is I wear the middle too fast if run that high. Grab the inflation tables for your brand and size tire and get your axle weights to dial it in. For my F350 on the same size/load rated tires, I run 55 front, 45 rear (empty).
Posting Guru
Joined: Jun 2002
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From: Panama City, Fl
70 front....55 rear empty '00 SC LB 4x4 7.3 auto...
Find an empty, smooth parking lot. Take a bottle of water. Spread water on pavement and drive front only thru the water enough to leave a short track. Air tire until the edges of the tire leave no track....then lower until full width track is seen again. Do the same for the rear. This gives you a flat tread pattern and even wear.
Now....if you found an odd pressure resulted from the above info, use commonsense. I have used this method for years....even when I worked in a tire shop. Not every vehicle needs this method but for heavy ones, tires not original size, or something different from the ordinary, it works great.
Find an empty, smooth parking lot. Take a bottle of water. Spread water on pavement and drive front only thru the water enough to leave a short track. Air tire until the edges of the tire leave no track....then lower until full width track is seen again. Do the same for the rear. This gives you a flat tread pattern and even wear.
Now....if you found an odd pressure resulted from the above info, use commonsense. I have used this method for years....even when I worked in a tire shop. Not every vehicle needs this method but for heavy ones, tires not original size, or something different from the ordinary, it works great.
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Junior User
Joined: Mar 2013
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From: Dingmans Ferry, PA
Lots of great advice guys thanks! I decided to run 65 front and 60 rear.
And AzPete, I'm gonna try that method! Thanks
And AzPete, I'm gonna try that method! Thanks
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Fleet Mechanic
Joined: Feb 2007
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I like AZ Pete's approach. I have also taken a big fat piece of chalk and drawn a line across the tread, and then driven across a parking lot to see how it wears off. It might be easier to see with Pete's method though.
Elder User
Joined: Jul 2008
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From: Buckenderra
I run 50 all round. Tyres are Micky Thompson 4 bar ATZ
285s on the stock alloy rims. I find with the wider tyres the tread doesn't stay flat if I put more than that in. But might try the water test to get them perfect. Great idea.
285s on the stock alloy rims. I find with the wider tyres the tread doesn't stay flat if I put more than that in. But might try the water test to get them perfect. Great idea.
Cargo Master
Joined: Apr 2010
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In daily commute mode (air hauling) I run 60 front and 55 rear. For my truck and the BFG commercials I run, this gives me the best wear. Use the water or chalk method above on new tires to find out where you need to be with your setup.
Hauling or towing something substantial, 65 front and 80 rear.
Hauling or towing something substantial, 65 front and 80 rear.
Cargo Master
Joined: Oct 2007
Posts: 2,712
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From: BoCoMo
50 psi rides smooth like a car
70 psi rides like a beer wagon ( when no loads or pulling).
I will run them 'around' 50 psi for daily driver.
when I hook up the camper I will pump them up to 70 psi.
70 psi rides like a beer wagon ( when no loads or pulling).
I will run them 'around' 50 psi for daily driver.
when I hook up the camper I will pump them up to 70 psi.