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I have some brake issues also. I have a master from a mid 90's Ram truck 2wd and it is for power brakes and I have manual stock rear drum and stock front discs off a diplomat and just ran the lines with no prop valve and I seem to have a very hard pedal. Basically takes bolth feet to stop it but they seem to work good other then the hard pedal. I was thinking it might be the rod angle to the master. It is going uphill just a little. Anyone have any ideas?



Measure the bore in your master cylinder and go with
a little smaller bore... it will decrease the effort
you need



DON'T FORGET TO MAKE SURE YOUR MASTER CYLINDER ROD HAS A WAY OF BEING RETAINED . IT CAN FALL OUT.
this article addresses what to do regarding the pedal ratio to decrease the amount of pressure needed to make stopping easier http://www.dragracingonline.com/technical/vi_5-cylinders-print.html

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