It stops.........barely

[americanmusc1e]

This is killing me..... or should I say It might kill me.

I started noticing that my brake pedal was weak on my truck a few weeks back. The pedal would go almost all the way to the floor before it would stop. I figured that the back brakes needed adjusting, so I put the truck in the shop and adjusted them...... they needed ajusting. I took it for a test drive.....

1. if I try to stop normally (not hard) it works fine

2. If, when stopping normally, I want to stop faster, and push the brake pedal down more, the system dosen't build any more pressure.....the pedal goes to the floor with pressure, but not enough to stop me fast!!!

3. When I first put discs on the front, the truck would skid the front tires on dry pavement. now.... I'm not even close!!!!

the truck ('70 longbed) has power front cross-drilled discs, (switched from discs to drums 2-22-09), and stock rear drums.

at the time of the disc brake swap I put.....

calipers, rotors, master cylinder, prop valve, and booster.......almost new off of e-bay

all new rubber brake hoses

all new front brake hard lines



pads and shoes all look fine.

After the problem started, I swapped in a reman Master cyinder and swapped back out to my old booster.........and lots of bleeding

The Problem Persists........ and I'm still driving it......... scared to death

Suggestions??????