2017 F-350 dually, door sticker says 70 front 65 back cold. We pull a 3790RD 40' rig, 11 months full time moving every other week and traveling 2-300 miles at a time, we have had no abnormal wear. Once on the road, tires come up 5-8 psi front and rear. Rig psi 110 cold and once on the road they come up about 10 psi with no abnormal wear.
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