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Old 04-22-2011, 02:33 PM
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Default Tire PSI question

I installed a 2.5 inch level kit.. took off the 275/60/20 stock Goodyears.. put on 275/65/20 Dynapros, Stock tire PSI on the door is 35. What does this new setup require? I figured about 40. What do you guys think?
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Old 04-22-2011, 04:49 PM
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ive got 285 79 17 on mine i run 40 in the front and 35 in the rear unless im towing then i up both by about 5 psi. i get a nice even wear
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Old 04-25-2011, 10:19 AM
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I've found 40 psi feels good for this set up. thanks,
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Old 04-25-2011, 10:56 AM
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PSI = PSI and is not related to the tire size. PSI is measured as pounds per square inch. So the guage will read the feedback of a small area vs a large area as the same measurement. It just take more air in a larger tire to get the same readout. The MAX INFLATION printed on the sidewall is the MAX pressure you should run at. If it says 40, then you can run up to 40. The lower the pressure, the more flex in the sidewall and therefore the more comfortable ride...the more the pressure, the stiffer the sidewall and the more bouncy the ride. Just don't go too low as to cause a pressure light, or actual tire damage. I would guess between 35 and 40 should be fine.
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