What tire pressure is best for 285/50/20 tires on our trucks? Obviously you can't go with factory specs and you can't very well run the max pressure shown on the tire sidewall. What kind of pressure are you guys running with this size tire??

 

Max for mine is 50 psi and I'm running 42 in the front and 38 in the rear. Seems to be the best balance. They had 50 in them when I got them mounted and it rode like a buckboard wagon. Didn't want to lose any mpg by going down to 35 so I just compromised and it seems to work ok

 

I've been keeping mine at 35 psi, seems to have been working out so far.