Not sure how much this will help but here is a pic of the fittings that were on my 12/67 built 68 j code Cougar - 4 spd, ac, ps, pb (front disc) with smog. Also trying to determine if these fittings are smog specific (have only found diagram of the upper brass fitting in the assy manuals). The vacuum hose from the metal tube to the brake booster (piece of fuel line when I got the car) I think should be 2ply reinforced vacuum line but I don't have specs.