New tire ?
 

Just picked up some Nitto Terra Grappler in 285-75-17E,any input as far as tire pressure front to rear and loaded vs.unloaded? Thanks

For maximum life and mpg, use the number on the side of the tire when loaded, when unloaded for a softer ride, 10% less. I run 70lbs in the back and 75lbs in the front on my F350 with tires rated to 80lbs. If I load it I will have 80 all the way around. I wouldnt go below 65lbs on an 80lb tire.

Thanks