I've got the factory Goodyear's 20"..Called a couple of the local tire dealers.. Told them that my Ram P.U. had 20" tires and had molded on the rim of the tire "max pressure 44 Psi" How much air pressure would they put Into the tires..They both stated 40 lbs for everyday driving... Doug

 

I have 35psi in my stock 245's....yea i know they're girl tires[:'(]

 

52 lbs in my 17's rated 85 max

 

44psi