1958 d100 master cylinder upgrade

[twodog45]

i know this forum is more for cars, but i am looking for a master cyinder upgrade. i did a front brake disc conversion, and now will have 10" single wheel cylinder drum brakes in the rear. i am looking for a master cylinder with dual reservoir for front disc brakes. one i can mount under cab like the original.
will i need a proportional valve?

 

[65 Dartman]

Following along as the master cylinder in my 47 is also below the floorpan

 

[Darter6]

This is just a thought. Try Speedway Motors as they carry many items for the cars and trucks of the 30's thru the 50's.
You never know...