Not sure which 2003 GMC Sierra Air Suspension Kits are right for you? We have over 1248 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Recieved the 5000 series Air Lift air bags quickly and was able to install in about 3 hrs. Installation instructions were very clear and all parts necessay were included. Bags eliminated rear spring sag." —Ernie S from Carlton, OR bought an Air Lift Air Bag Suspension Kit for a 2003 GMC Sierra, 2500HD.