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I am using a AR adapted late model 1.03 alloy master cylinder unit at this time , no booster,on a manual drum brake pedal the car was made with .A Baer tech said to use a 15/16 or 1" master ,so I might need to change it after the front swap but I'm going to try the one mounted on the car now.The pedal effort went down with the rear disk swap and its a fairly small piston caliper at 38mm,or 1.5",so perhaps the large rotors, high friction ceramic pads, braided flex lines and stiff alloy calipers that came from Baer will compensate for the smaller piston size .I'll soon find out and post.



I'm running pretty much the same front kit on an E... just a few years older. The front calipers have a relatively small piston area and like lots of pressure. With the Bear suplied master and a 9" single diaphram booster brake pressure is barely adequate. Front/rear bias on mine is OK with 11" rear drums and the prop valve adjusted all the way out. I'm betting you will want the smaller diameter master after you try it out.

On my setup, I might try a smaller master but don't think that will be enough. Dual diaphram or hydro boost is in my future I think.