The truck came stock with a hydrovac. Single master cylinder of course. I'd like to stick with this for originality and its good fit. I've always wondered if the safety reason for a dual master cylinder wasn't more hype than reality. I understand the reasoning behind the dual cylinder, but I've never heard of someone who's master cylinder broke while driving.
I definitely don't want to run 20" buds on my truck. Don't know that they would fit inside the fenders either.