[swamp2]

Just a couple of comments.

1. Please understand the difference between yeilding damage and fatigue damage. They are incredibly different and you should not really use the term if you have no idea what it means. Jacking a car IN THEORY could cause yielding but won't cause fatigue.

2. I would not get under a car with anything holding it up made by Harbor Freight. Sure buy a cheap pair of pliers you might use once or once per year at HF but not a jack or jack stands. I know some have had good luck with these items from HF but I've also bought more than once complete piece of crap there. For me I won't make that choice with a part that could easily seriously injure you or even kill you.