Okay, I installed Granada discs on the 69 Mach I a few months ago. I am now ready to install my freshened motor, but have not plumbed the brake lines yet. I have installed new Granada soft hoses and have the Granada prop valve with a 1969 Mustang MC/booster. I also have the factory Granada hard lines up to the prop valve, and a pair of 69 disc brake Mustang hard lines(the donor 69 didn't have a prop valve !!). None of these appear to be correct. Did most of you just fabricate new lines, or modify the originals ??