[mongocanfly]

I know this has been discussed here before but I can't find it....some people use nothing....I've also seen where its mentioned there is a non hardening caulk used....ive seen where people cut gasket material to fit....there is also a store bought fender welting for some trucks.....you don't want to use something permanent such as seam sealer and you don't want to create a water trap either....
I assume this is for a 72?