I have a 2014 4500 Chev, it came with no spare. Instead of buying a steel wheel/tire of a spare, I'm thinking about putting aluminum rims on the front. Anyone here done a aluminum rim on their Chev ba...
My Chevy, now ten years old, has factory aluminum rims and a spare. They have caused no trouble even on 4x4 roads. It is a 2500HD, so perhaps this is not useful info for your 4500.