I know 305/70 isn't good on the stock rims but I just bought my truck and they were on there when I got it. So, they are basically new tires and I'm not spending the money for new wheels right now, what air pressure should I run them at to get the best tread wear. I haven't checked the pressure in them yet but I have noticed in the 2K miles that I've had it, the tread in the middle is wear but I can't see any wear on the outside 1" or more. I know it will be hard to get them even but what is the best I can do as far as pressure?

Try 40-45psi front and 35-40psi rear (empty) used to wear well for me.