I *thought* I heard a slight growl when starting from a stop in my f250, and it went away when it shifted to 2nd (E04).
HOwever, when I hooked up my heavy Travel trailer and used the weight transfer bars, it was very noticeable. It may be that it didn't quit after shifting, but the road noise blocked it out. Then again.....
Should I look at the bearings, or the trans?
TIA