I run the same PSI in all four tires all the time loaded or not as per Cooper MFG. and Discount Tires recommendations.
The truck is just a touch under 8000 pounds.
2016 F350 6.7L LB CC Reese 28K 2014 Chaparral Lite 266sab
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety." 2014 19 days camping 2015 17 days camping201620 days camping