How to lower a Chevy Silverado or GMC Sierra 1500 truck 2007-2018. Lowering Kits for Chevy and GMC 1500 trucks are available in different brands but the parts are very similar and can be confusing. If you ever wanted to know how to lower a truck? Then this is a great video to watch. We go over the different ride heights that are available and how to achieve them with different parts. Then after that we go into a full "how to" instructional tutorial on a GMC Sierra that is the same as a Chevy Silverado. This is an excellent video to watch if you want to learn how its done.