Master Cylinder Primary Line runs from the Master Cylinder to the top of "T" Union on Firewall, Master Cylinder Secondary Line runs from Rear Port of Master Cylinder to Proportioning Valve, Left Front Brake Line runs from Lower Port of "T" Union to Left Front Brake Hose Connection, Right Front Brake Line runs from Horizontal Port of "T" Union to Proportioning Valve and from Proportioning Valve to Right Front Brake Hose Connection, Left Rear Brake Line runs from Proportioning Valve to Left Rear Brake Hose Connection then to the Left Rear Wheel Cylinder, Right Rear Brake Line runs from Proportioning Valve to Right Rear Brake Hose Connection then to the Right Rear Wheel Cylinder