Please read this to make sure you are ordering correctly.
The back door of this truck measures 40" wide.
Using a tape measure, measure directly under the back door handle across the width of the door.
If it measures 40" wide, you have a Crew Cab and you are on the right page.
Scroll down to see the DU-HA for your truck. If your back door only measures 30-1/2" wide, you have a Double Cab and you are on the wrong page. If you have a Double Cab, go to this page: 2014-2019 Chevy & GMC Double Cab
Fits Chevrolet and GMC Silverado/Sierra Light Duty Crew Cab - 2014-2018 and Silverado/Sierra Heavy Duty Crew Cab - 2015-2019