the wheels are a single piece lock ring 1 of the safest out there from that era. I changed truck tires for 25 years and seen them all. Just check that the rim of the wheel where the lockring seats is not rusted bad.then check the lockring for rust also im not talking about surface rust if it is pitted bad i would not use them.The ring will have to be turned about 10 degrees to get it to release from the wheel. Once you break it down look at the ring there should be a spot in the ring 180 degrees apart where the lock ring slides off. if your really not sure take it to your local truck tire dealer and have them remove tire from rim. a 20 dollar bill is cheap to save a life.
