Vert. question

I never thought about it before if it can be replaced or not. It is the same stuff used on the tack strips, kinda like cardboard/punky wood so you can put tacks and or staples in. Try year one? or Hydro-electric top guy that is in Hemmings a lot. The stuff is very generic to the big three. Remember GM/Ford and Mopar all used the same supplier for the convertible top stuff.