Billyray50
I bought the same setup from same shop and they vibrated terrible.
Wheelrack wouldn't do anything about it. Long story. So I had to get it fixed.
I tried balancing to no help and ended up finding all 4 tires out of round , one as much as 1/4 inch best was 1/8 inch out. The way I found this was jack up one tire until it's just off the ground then slowly rotate and if it hits ground it's not round.
Only way to fix is have them trued, some semi tire shops can still do this but you will have to search.
As far as balancing I used air soft pellets ( works the same as centramatics and dyna beads but much cheaper ) do a search off this forum and there is lots of info.
Use the heaviest beads you can find and each tire will need about 3 cups ( after truing they will be really out of balance and need the extra media too much won't hurt anything ).
I'm currently in alaska with about 8k miles and no issues now.