Not sure what jack stands you guys are using, but I was just using mine recently (craftsman 4 ton) and was surprised at the warning label. Especially since I have been using these to hold my car up for the past ten years. The third bullet basically says to only use two at a time!
Now I am really looking for a different way to put my car in the air. Just a heads up to check the fine print on your jacks stands.
Now I am really looking for a different way to put my car in the air. Just a heads up to check the fine print on your jacks stands.