They didn’t come ready to install when I was doing these on my trucks. They were delivered rolled up in a box, both types, fiberboard and ABS.

The struggle is getting the bends made especially on each end. Wetting the fiberboard was supposed to soften it enough to conform as needed. But, in my experiences that was useless and counterproductive as it created an ugly mess before it even reached that point. I did not wet the material at all when doing the installation on the ‘46. Tenacity, patience and walking away to cool off when needed because of frustration eventually won the prize.

I do believe having another set of hands to help would likely make the process a bit easier. I didn’t have help, other than the “tools” referenced previously.

In hindsight, I wonder if using steam from a hat shaping tool would work? My guess is having a helper steam the backside while the installer held the material near the placement point and hold it in place until it cools might work? I believe care would be needed to not over do the steam or the fiber board might delaminate?