This has probably been asked before but because we are leaving in the AM for the summer I need quick advise from the folks on here. We have a 2013 Ford F350 SRW 6.7L Diesel and a new to us 2016 Key...
I swapped from C to D tires on my trailer and ran them at the full 65 PSI, old ones were recommended for 50 PSI.
That caused just the center of the tire to wear out but hey at least I didn't have to worry about them aging out LOL. Now I run them around 50-53 psi per the GY inflation tables and CAT scale results, which gives me uniform tire wear across the tread.