Originally posted by leecea
I just looked on Google - it's a concrete block (Concrete Masonary Unit).
I think they might be too brittle to trust, but I don't know much about concrete. I guess my foundation is made with them and my house hasn't collapsed yet
LOL....sorry. i forgot to explain what cmu is. it should be stable when you put it right-side up. better if you have a piece of plywood to disperse the load.
just giving a suggestion that might save you some money. personally, i'd just jack 1 side at a time. it's not like it takes 30 mins. to jack the car up.