Over thirty years ago I bought an old Bain Brothers tire changer for $25, it came with a 4' x 4' concrete slab under it. It sits outside with a 5 gallon bucket over it to protect the hold down threads. I have changed 100s of car and truck tires with it. The 12" GT tires are a little aukward but doable. Anything smaller won't fit. The little HF tire changer went on sale for $27 and I grabbed it. It took me a couple of weekes to figure out the best place to mount it. I mounted it horizontally on the end of a heavy steel work bench. When not in use, I pull the pin and just put most of it on the bench. This works pretty well but there still are times when busting a bead is difficult. A few years ago, I bought a very old mechanical car tire bead breaker for $10. It is a portable(20 lbs) tool that just sits on the floor. It is faster and stronger than the HF. It makes short work of any bead so that I save time and effort. The other alternative for bead breaking is a bead breaking hammer. I've busted many split rims with mine but I don't think anyone else uses them. You may be able to pick one up cheap. There was a GM coil spring compressor that worked for breaking small tire beads too. Lubricants will help alot when disassembling and assembling. Good Luck, Rick
Until you mentioned it I'd forgot having a GM spring compressor around here, somewhere. Dug around nearly all day yesterday for a piece of 3/8 all thread, no luck. Went through gear pullers etc. too short. Discovered a scissor jack...that may work with some re-engineering. Problem encountered with these smaller rims has been breaking the bead and getting it all anchored to pop it up over the rim. Have a quart of wire-pulling lube...works fairly decent, and the always reliable soap.