My brand new 1986 Toyota truck has no fluid going to the front brakes. I've replaced the rear brake shoes, wheel cylinders and removed the load leveling proportioning valve and replaced it with a Wilwood adjustable unit. I've replaced the front calipers and pads and master cylinder. When I bench bleed the master cyl (I've done this three times!) it works great but when I install it the pedal goes to the floor and I have back brakes but no fluid going to the front port. I've put two new master cylinders on and both are doing the same thing. WTH? HELP. PLEASE! I love my little truck and I want it back.