cap10rob
+1y
99.73% sure that a tonneau cover doesn't matter (made up percentage). Only a cap that has to fit the conteur of the cab SHOULD matter. I can't remember which way it is, but if you try to use the wrong cap, it will either touch the cab or have an awful gap. I used to sell A.R.E. caps and covers, and they fit soo snug against the cab that it does matter. If it is a hard tonneau it may affect only when it opens, but a soft cover shouldn't matter.
I kinda miss selling truck accssories, I visited my old shop (Tillman's) yesterday, and actually started helping customers! even though it has been 3-1/2 years.
P.S. If you are looking for a soft cover, the "Access" cover was and is still the best on the market. I used to sell the hell outta them. I also had an A.R.E. "Z"-series cap on my sonoma extended-cab/short bed and I loved it.
My dad bought a roll-and-lock cover, and it sucked.
Also, don't try to color match spray-on bedliners, because no matter what they tell you, it will definatly fade, no matter what the brand.