Weird Vibration In tow Rig/Daily Driver

Help, Weird Vibration in my daily driver/ tow rig seems fine up til 60 mph then the truck seems to start vibrating. sometimes the vibration is bad other times it isn't and the vibration only starts if I level off on the speed and keep the speed constant anywhere from 60-70 mph. Listed below are the recent parts changed

-rear driveshaft u joint

-both wheel hubs up front

-Driver side door

-driver side stub axle

I really want to get this fixed but I also don't want to just throw money at it and hope I get it