I had one rear that had a bad belt, people following me said it seemed to wobble side to side. A very good friend that owns a tire shop told me that on duals it is very much recommended to replace both to match, preferably whole axle, to keep one bad one from causing strange wear on another.
I'd ask the shop you went to to show you how they figure the wheel is out, not the tire.
And that bang I'm betting is one wasn't fully seated, makes you wonder about others. See if you can get newer rims may be best.

Last edited by 52vff; 10/09/2018 11:47 PM.

1952 Chevrolet 1700 Bickle Seagrave
"Old Smokey'"
Following the build in the DITY Gallery