I got the trailing arms, e-brake cables, and brake lines. The donor car had abs and the brake booster was leaking, so i don't have master/booster and prop. valve. what will happen if i put the brakes on with out that stuff? Has any one ever done that? What model car can i find the prop. valve in?

 

unless someone tells me something bad about this i am going to put them on.

 

you are fine.. you wont have the full potential that rear disc can give with out the correct prop valve... mc and booster give better pedal feel, and more sensitive braking

 

i thought with out the prop. valve the back brakes would lock up easy.

 

The disk setup wants more fluid to lock it up. THe fronts will lock up long before the rears will with your old prop valve