? about hydroboost brakes
 

I am just about finished installing a hydro boost setup out of a 79 diesel, I am putting in a 78 that had vaccum brakes. I have a concern that I hope someone can help me with. My stock vaccum booster has the big brake line fitting on the front , and small brake line fitting on the back of the master cylinder. The Hydroboost is backwards small on front and big on rear. Which fitting on the master cyl of the hydroboost goes to the front brakes?? , and do I need the brake valve from the hydro or can I use any power brake valve?

Re: ? about hydroboost brakes
 

You can use your stock valve, if i remember right, when I did mine I just moved the lines around. I will let you know tonight after work for sure.

Re: ? about hydroboost brakes
 

That would be great, Thanks

Re: ? about hydroboost brakes
 

Yep that's what I did and they work fine

Re: ? about hydroboost brakes
 

ok cool but isnt there a front and back side to them, they have diffrent holding pressure for front discs, and rear drums. I am goin to have rear disc brakes thats why I asking. So I dont get a mushy pedal.

Re: ? about hydroboost brakes
 

You are correct but different years had the front and back side in different locations, the line size did not change. The proportioning vaulve is where the pressure is changed and even though you are going to discs you do not need to change it out.