Hi, I am a new member who just bought a 2015 Silverado. I bought an Extang Trifecta 2 tonno cover. The problem is they told me I have to cut into my dual liner bed to make the clamps work. Does anyone have a work around to this?

 

I have a Extang Trifold on my 14 with a bed liner. No problem at all with install.
Don't understand what a "dual liner" is