Thanks, James. I looked over the charts. It looks like I can get away with 70 psi in my front (steer) axle tires if I'm under 9,000 lbs. 70 does seem a bit low to me (for no scientific reason). I have 90 all the way around and the Volvo rides kind of rough (bobtail). So, I think I'll back them down to 85 and see what happens. Joe
1998 Volvo VNL64T610 N14Cummins
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