I'll do an X-2 on Cummins 12V98's and jus2shy's posts, RE front tire pressure.
All that diesel weight on the front end will require good tire pressure up front ALL the time.
On my previous vehicle (2011 F 350 dually diesel) the front tires were set at 55 PSI at the dealership. So I left then alone, and that did NOT work out well for me.
Wore on the shoulders, cupped terribly, and I would get a terrible death wobble at times at speed on the highway when hitting certain pavement conditions.
After reading here, I upped the pressures to 75 PSI, loaded or unloaded, and the tire problems went away.