Hey guys I'm tired of hydrovac problems so swithing to electric shifter on 2 speed rear end here is were I need you guys..... On my brake option does anyone have a great reliable swap with boost that mounts on firewall with master cylinder?????????????.......... I was thinking something from like 1991 chevy hd3500 something like that come on guys I know someones got a great swap give it to me please!!!!!!!!!!