I also have the 06 PSD. In tow haul I do not have this problem. Nice clean smooth downshift. In fact, when coasting, if I tap the brake pedal, it causes the transmission to downshift to the next lower gear. No noise or bumping whatsoever. If I were you, I would head for the dealership... Tim
06 F350 4wd PSD Crew
06 Mountianeer 34PHT
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