I am going to rip off my rear disk upgrade soon, i did the trail gear kit, master cylinder, and a manual prop valve. Bleed it and bleed it and soft pedal, do i have to have a dual booster for a 1" master cylinder or am i just missing something?! I have spent hours reading just noone says for sure yes you need this or no your stupid and can't find the leak( booster maybe? mc just bad?) I have a soft pedal with truck running yeah it stops jsut not great and doesn't always like to hold itself on a hill!? Truck off pedal is hard and it kind of does pump up some with running helP!!!