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Old 10-18-2016, 08:05 PM   #1
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Tire Pressure ?

What tire pressure do you guys think I should run? I've always had vehicles with bigger or smaller than factory tires size. I currently am running 325/60 20 what tire pressure should I be running?

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Old 10-19-2016, 09:28 AM   #2
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That's a tough question and it could change depending on what you are doing with your truck . Since that statement is of no help at all I run 36 PSI 100% of the time all the way around in 305/45/22 street tires. This seems to be optimum for my needs .

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Old 10-19-2016, 11:03 AM   #3
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Quote:
Originally Posted by HemiFun05 View Post
That's a tough question and it could change depending on what you are doing with your truck . Since that statement is of no help at all I run 36 PSI 100% of the time all the way around in 305/45/22 street tires. This seems to be optimum for my needs .

Agreed, all depends what you are doing. I run 32psi in the front and 28psi in the rear.
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Old 10-19-2016, 07:16 PM   #4
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Not sure what would be better I think I've been going 5psi under max pressure. Didn't know if it's better to run even less than max.
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Old 10-19-2016, 07:22 PM   #5
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Not sure what would be better I think I've been going 5psi under max pressure. Didn't know if it's better to run even less than max.
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Trial and Error...see what works best for your most common use...look for uneven tire wear...too much air - the crown will wear first - too little air the outer edges will wear first...for high speed long range high heat driving most recommend upping the PSI somewhat .

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Old 10-19-2016, 07:40 PM   #6
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Only time I have run max tire pressure is when I have a heavy payload and I am going further than around the block. Recommended pressure on the door jam for my 14' 1500 is 39 psi, but the badyears were wearing in the center of the tread, so I have been running 35 psi. Makes the ride quality a helluva lot better too. On my old 04' I had 305/45/20s on the stock rims and used 35 psi with very even tread wear.
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Old 10-19-2016, 07:50 PM   #7
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The door placard says 35psi all 'round. The Bridgestone's are wearing evenly at that pressure. The pressure plus my RSB make the Ram feel like he's up on his toes. Me likee.
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Old 10-20-2016, 05:01 AM   #8
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Very true you can't run them so low that they will generate excessive heat, but if you run them 30> you don't have traction. So it's always a trade off.
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Old 03-10-2017, 04:06 PM   #9
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the old chalk trick works decent too...find a nice dry pavement spot and draw a chalk line across each tire...adjust psi until the chalk wears off evenly. for what its worth i ran 42 psi in my 315/70/17 pro comp mts
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Old 05-03-2017, 03:27 AM   #10
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Another vote on doing the "chalk test" method to ensure even wear on the tires.
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