Rubber brake hoses are used where a flexing action is needed. For example, brake hose is used between the frame and front wheel cylinders. This allows the wheel to move up and down or from side to side without brake line damage. Shows the details of how brake lines and brake hoses fit together.
A junction block is used where a single brake line must feed two wheel cylinders, it is simply a hollow filling with one inlet and two or more outlets, a longitudinally split (front to rear) brake system has one master cylinder piston operating the front wheel brake assemblies and the other operates the rear brakes. A diagonally (corner to corner) split brake system has each master cylinder piston operating a brake assembly on opposite corners of the car.