couple related questions:
1. I know there are many different types of alum. I think most cat spars are built with 6061. Are alum rivits the same grade? and if not, would they have corrosion due to dissimilar metals?
2. I have seen how amazingly well Tef-gel works.. is duralac the same type of product (PTFE) and is it any better than tef-gel?
