Glad to read someone else is happy with their 5.4L. Our tows our 8500~lb 5th wheel all over the southeast without any trouble. Wife made the comment on our last trip that, other than the seats, I haven't complained about this truck at all. No unusual noises, vibrations or weird gear ratios to bug me.
2020 F250 STX CC SB 7.3L 10spd 3.55 4x4
2010 F250 XLT CC SB 5.4L 5spdTS 3.73
ex '95 Cummins,'98 12v Cummins,'01.5 Cummins,'03 Cummins; '05 Hemi
2017 Jayco 28RLS TT 32.5'