Good Point. I have seen people cut out and deepen the hole, drill the existing pad for re-bar. Also key cut the old cut out to help lock it in.Just make sure you have the garage floor for it if you do go for a 2-post. They put more stress on the posts and the concrete. If your floor is too thin and you bolt to it, it could break away and topple over. Sure, the Goblin doesn't weigh that much and should be fine with it, but in the future if someone else were to lift a truck, it could spell disaster.