Not sure which 2003 GMC Sierra Tonneau Covers are right for you? We have over 11987 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 purchased the TonnoPro cover after having the factory hard cover removed. This cover was so easy to install, you would have to be missing a chromosone to mess it up! Put it on and drove 2,200 miles to Buffalo NY and back; through the wind, snow, rain, and my led foot, NO PROBLEMS!!!! On occasion I would check the clamps and again no problem. It looks good on the truck and I'm sure with proper care and attention will last a long time. If not I will buy another one!" —Teresa O from Joplin, MO bought a TonnoPro TonnoFold Tri-Fold Tonneau Cover for a 2003 GMC Sierra.
"its a great way to cover your truck bed. why buy a cheap cloth one when for a fair price it can last longer and is very durable. the hydro pumps is the only thing i have to complain about. they are hard to take off the cover but easy to remove from the truck. they don't stay latched either." —Aaron S from Lufkin, TX bought an UnderCover Tonneau Cover for a 2003 GMC Sierra.
"easy to put on, easy to follow instructions, seems to be very well made, went on and looks good" —Philip D from Lakeside, CA bought an Extang TuffTonno Peel & Seal Roll Up Tonneau Cover for a 2003 GMC Sierra.