John is correct in more states than not RH5s are illegal to run. In all states OSHA regulations prohibit shops from working on them.
If you have them on your truck do us all a favor use a core remover and remove the valve core to ensure that they are completely deflated and dispose of them.
Please even if you do not plan on saving the tires that are on the wheels. Do not dispose of them with pressure in them they are a ticking time bomb.
