Not sure which 2003 GMC Sierra Nerf Bars & Running Boards are right for you? We have over 7887 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:
"I have a 2003 GMC 1500HD Crew Cab that I purchased new and have wanted to put some kind of step bars on since I bought the truck. I put GM fitted mud flaps on the truck when it was new and was concerned about clearence at the front wheel. I went with the powder coated black which looks great with the truck and fits fine with the GM fitted mud flaps. The oval design also looks great, big enough for a step but still close to the body for a clean look. Great price when compared to similar products. Best of all the installation. UPS dropped off at 5:30PM installation complete at 6:15PM using basic hand tools. Brackets clearly labeled, L/R and F/C/R. Instructions not great but anybody with a little ability will have no problems. Don't wait! Order yours today!" —Jeff I from Kansas City, MO bought an Aries 4" Oval Nerf Bars for a 2003 GMC Sierra, Heavy-duty, crew cab.