Quote:
Originally Posted by aerobod
I use a hockey puck that rests in the cup of the floor jack and the depression in the undertray. I ensure the jack wheels rotate easily when the Jack is under load and only use it on a smooth concrete surface. I have never had the jack cup slide while lifting or lowering, only the wheels should roll (assuming the jack is aligned along the length of the car when using the central jack point).
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Hockey Pucks and wooden blocks are NOT the proper tool for jacking. Best to use either a purpose-built urethane pinch weld lifting pad (~$8 on Amazon) or a BMW style lifting pad (~$20) with the properly sized mating block to insure equal load distribution.