Need help with prop valve

[c-1072]

i just installed a used booster master cylinder and prop valve . fronts bled out no trouble . rears nothing after pulling apart the prop valve tried it again no good . I had a old prop valve from my blazer swapped it out and it worked great . thats just what happend today hope it helps .

[68jimmy]

Well I got it to work finally... Here is how:

1. Removed the switch from the prop valve and re-centered the valve. Re-installed the switch.

2.Re-bled the brakes but this time I did the gravity method, starting with the rears on the right side.

3. After the bleed the pumped the brake pedal a few times and let it set. Meanwhile I re-checked the switch with the test light, no light all is good.

4. Re-bled the brakes once more, gravity method once again.

5. Cleaned up and took it for a spin!

[HUEVUDO]

what kit , and how much, and how much time was needed to do it?

[68jimmy]

Not a kit but more a gathering of parts... I followed the disc brake swap from the faq:
http://67-72chevytrucks.com/vboard/s...ad.php?t=35042

I used parts from my 68 a 72 and a 90....