Removing coil spring from strut. I used spring compressors to compress spring.

Hello, There are strut wrenches and pass-through sockets made for this. One of those tools fits on the nut, and either a socket, box-wrench, allen key, torx, or etorx will go on/in the end of the shaft to hold it while you turn the nut. Also, an impact usually spins them off, but may cause damage if used for installation.

This can be a very dangerous situation! .. You might want to consider a complete quick strut replacement or have a repair shop with the proper wall mounted coil spring depressor switch it out for you... Be careful, it will not be a pleasant experience if that coil releases suddenly! .... Quick strut.. Only way to go, ready to plug and play with all new mounting hardware already installed and the cost isn't that much more .. In some cases, it could be a LOT less expensive!