[Davescort97]

Denisond3 has covered all the bases and take his advice unless you want to use the electrical impact gun. I have one and use it to take lug nuts off. If you are patient it will loosen that damper bolt. You've already put penetrating oil on it so you should be good to go. You may have to let it impact as many times as it takes to loosen it. It will eventually get the bolt out. Use a 1/2 inch impact socket. Your friend may have the right six point socket to fit that comes with the gun. I recently took the pulley bolt off a 97 and had to let it impact quite a few times. An air impact gun will impact 8-10 times a second. The electrical impacts about once every 2 seconds so stay after it and you will get it out.