I have a single pod gauge holder on my "a" pillar now. I was thinking of going to a dual pod. Does anyone know if there is a one piece pillar replacement for the 87 GN? Or are they all just the smaller piece that goes over the existing pillar (which is all I can find)? I also was considering the roof mounted unit from Poston (I believe). Does anyone have this and how do you like it? Thanks for any help.