Shaky Two Post lift

[Colonel]

I have a almost new 2 post car lift. With 10 inch vertical extensions on the arms, I can find the frame in four places(non symmetric) and lift the vehicle. But... the car is shaky on the lift and I am not comfortable doing real work under it.


I am wondering if anyone has experienced the same problem and have found a solution. I am ready to modify the lift as necessary but not sure what will work. Thanks in advance for any thoughts, pictures, etc...