This coil spring compressor kit worked exactly as it should. I was able to replace the front spring dampers on my 2014 Sierra with this Shankly spring compressor kit. I've posted a video on YT using this kit if you want to see the tool in action. My only complaint is that the instructions for use are very vague. The instructions also directly contradict the listing's statement that an impact wrench cannot be used. The instructions included with the kit indicate that an impact wrench MAY be used. Search "How to Replace Front Shocks on a 2014 Sierra or Silverado" on YouTube, the video will be listed under my name. Put in a set of Bilstein 5100 shocks. When you get to the video of this Revain review, be sure to leave a comment so I know this review helped.