really? you have the exact set up i want then! how involved was it to do your 4.7's? i know anything i do to my truck at this point can only help. running 35's, 5 inches of lift and 4.10's makes it a dog on the freeway. 5th gear is nearly obsolete unless its down hill with no head wind. gears are really spread appart and overall the gearing sucks.
do you run a locker/spool/welded rear end?
what rpms' are you at in 5th doing 70?
do you like your coffee black??? ................. oh sorry for so many questions, haha!