I reccomend Walker also. I have an old long Walker 4 Ton floor jack I paid $25.00 for in the late 60's. It looked like it was worn out then, even the wheel bearings were loose, but I have used it a lot. It's so heavy it takes 2 people to lift it. About 8-10 yrs ago I paid $54.00 for a rebuild kit, rebuilt it, and it still works as good as new.
