What body is a 66 Imperial? I mean is it an A,E, what? How hard is it to change a single resovoir brake system to a dual resovoir system? I have the lines and porportional valve. But, I was told I needed a master cylinder from a drum brake car. What is the difference in drum brake master cylinders and disc brakes? Thanks. Ken 66 Crown Coupe _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx