front 80 psi rears 90 to 100 psi it does depent what type of work you are doing, horseboxes you can run alittle lower i did with my cargo it was on 215/75/17.5 it just made the ride alittle softer, but with my truck i do haulage with which is on the same tyres i run 90 front and 100 rears.
james
May 2009