2012 F150 4x4 XLT
Driving 57-63mph I get a vibration I can feel in the floor, steering wheel and can see the tailgate area of drivers side bed bounce, passenger side smooth.
Stock tires and wheels just balanced last week.
Today New Bilstein 5100 shocks and leveling struts. Alignment in 200 miles to seat in.
Yes it did this before the balance and shocks/struts. It did seem to help, old driver side strut was bad.

 

I had a vibration it turned out that the rear driveshaft had rusted enough that it was out of balance. Replaced it and solved the problem.