ok i have bench blead the master put it on the truck and didn't get any fluid to the wheels at all, i blead it again and now i get fluid to the wheel cylinders, i blead them and now i only have front brakes, no back brakes, I have fluid to the back brakes no air comming out when i bleed them but i jacked up the back of the truck and spun the wheels, hit the brakes no stopping, i did the same to the front and they stopped on a dime, what gives? i have found no leaks in the line and when i pushed the brake pedal down and opened up the bleeder screw on the back wheels i have fluid comming out, but the wheel won't stop if you spin it. with no real access to the master except crawling under the truck everytime to fill it and less then happy help (wife) this is starting to become a problem