bad brakes

[tmose2]

hey guys, first time poster here! I really enjoy the forum. Now I got a question.. My 85 Chevy 1/2 pickup has got a real annoying habit.. the brakes are locking up on the front, and the rear is sliding out and around. So far I have replace all the brake pads, new front hubs, new rear drums, new master cylinder, bled the system, bled the system down to the block where the brake system warning unit on the frame. The master cylinder is pushing fluid back into the resivor when the pedal is pushed. The pedal goes to the floor.I have a small video of the fluid coming out of the resivoir if anyone needs to see what I am taking about. This one has me totally baffled, and the guys at the counter at o'reilly too. Anyone out there have seen or know about this ?