DIY, change the back door support struts on Chevy Trailblazer 2002-2009

Do it yourself, change the back door support struts on your Chevy Trailblazer, the model produced between the years 2002 and 2009. If you have issues with your back hatch sagging down, you might consider replacing the gas struts that support it. You can do it in about 5 minutes, using only a small flat…