OK so I feel I am stressing the truck to much in hilly conditions pulling my 5th wheel camper, seems fine out on open road but needs help near the lakes and camp grounds going up those sometimes large...
Many of us here have changed gear ratios and are very happy with the results. and a few have the F150 and went from 3.55 or 3.73 up to 4.30 or 4.56 and are much happier they did.
I highly recommend the swap, especially since you frequently travel in hilly areas! you will be happy you did!