For those of you who don’t read my build thread; I bought myself a birthday present last week. Something I’ve always wanted and always assumed I would have to own a house a have a lot more money before I would be able to afford it:
It can’t really fail. Other than the car falling off it its pretty much fool proof. The clank you hear is a solid piece of bar-stock that hops over solid 2 inch thick “stops”. That bar and blocks prevent the lift from lowering even if the other components fail.
The metal it’s made out of is about three times the thickness of the frame rails on the sol and its rated to lift 3 tons. My car weighs less than one ton right now. :number1
With the base plate bolted into the concrete there is no rocking or lateral movement at all. Even before it was minimal, really just the flex in the baseplate. The thing is heavy enough and well designed enough to be stable.