I am currently building a 1936 pickup for a customer. I've made it into a crewcab and have it on a stretched 2002 Ford Ranger 4wd frame. Problem is with the brakes. cant fit stock master cylinder on firewall or under floorpan. Booster is 9" in diameter. I either need a 5-6" diameter booster or i'm looking at a under floor manual unit from speedway. First of all does anyone know of such a small booster and if not will the manual master cylinder from Speedway work with the stock ABS system?? Thanks