I bought a set of used boards off of a 14 and want to put them on my 12. Just want to no if there are any issues i might come across or is it straight foward cut and rivet? I already noticed at the back where it bolts on there is only one bolt now instead of two do i have to drill a new hole or do one if the existing ones line up. Any help would be appreciated i dont want to mess my tunnel up lol.