Yes,
My local tire company works on all types or tires, Truck/AG/Auto and will build them back up but will not add air. My neighbor is helping with a lot of the work and used to own a trucking/excavation company and is familiar with same.
My rims are marked Firestone 5RH so there is no doubt they are the widow makers. I am replacing them as we find 20 inch 6 bolt stud centered Budd rims but have only located three rims to date.
