Can anyone tell me the recommended tire pressure would be for a 235/75/15

 

32psi cold when they warm up it well be around 35psi

 

Read the sidewall, it should tell you max load inflation psi. This is the highest COLD setting you want. Max load psi is for, wait for it, maxium load carrying capacity, meaning your truck almost sitting on the bumpstops with junk in the back/ trailer towing. Your going to want to experiment with pressures, seeing what you like as far as ride quality, contact patch, noise level and wear. If you can visibly see a crown to the tread, lower the pressure til it goes away. A good way I check for proper pressure is take some chalk or a tire marker(grease pencil), draw a line across the tread, drive in a straight line for 100 feet and then check the line. If it's evenly wiped off, psi should be good. If it's gone in the middle, psi is to high. Gone on the outside edges only, psi is to low. All this depends on vechile weight, driving style, driving type(high speed, city, gnarly rock), and your preference. I know people with Samauri's that drive on the street with 18psi in the tires, and my dually with 65psi normal, 80psi with a trailer. Just play with it and find out what works for your truck.

 

on every tire, it is a DOT requirment that the max PSI be posted on the sidewall. Either way, Elton is right. --Hiriden

 

Thanks, i had it at 35 psi, guess i need to drop a few psi

 

Nevermind

 

NAIL IN THE COFFIN!
but your side wall will tell you your min and max so start playing their with the chalk, it dosnt not lie!