Not sure which 2003 GMC Sierra Bed Caps are right for you? We have over 1778 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:
"Previous bed caps i had were too big and bulky, these are the perfect size. Look factory and has tons of 3m adhesive tape." —Brent D from Bullard, TX bought a BAK ProCap Bed Caps for a 2003 GMC Sierra.
"very nice quility. I strongly recommend having 2 people put them on. Once they are on its very difficult to remove." —Joe S from Stilwell, KS bought a Bushwacker Ultimate DiamondBack BedRail Caps for a 2003 GMC Sierra, 8' long bed, single rear wheels.
"the bed caps i bought are great. i would highly recommend these to everyone. very easy to install." —Richard C from Desert Hot Springs, CA bought a Dee Zee Hybrid Side Bed Caps for a 2003 GMC Sierra, 6' 6" short bed, standard box.