I’ve never done it, so I’m asking…My old pickup truck...The tires are leaking air from around the valve stems. Aluminum wheels. Around the bead seems fine. I was thinking of trying to break the bead with my loader or backhoe, carefully of course, and maybe a block of wood? I just need to break one side loose enough to get in there and install a new valve stem…once the hole is cleaned up of course. Stupid idea? Or anyone else done it?