Alright, so we're trying to put springs on my car and another guy's. We're having issues with the lowest bolt on the back. For some reason, when we try to loosen the bolt, it turns a little bit, then has an intense amount of resistance, and when we release the pressure on the wrench, the bolt springs back to where it was before, thus not loosening at all. Any ideas? It's doing this on both cars... Does it matter which side we twist of the bolt? Like, do we need to uncrew the nut? Or just uncrew the bolt? Here's the pic from the article of the bolt I'm talking about.
