Prior to the wrenching session, we cheated a little and mocked up the new lines on another, fenderless 65 (see, theres a good reason were keeping this semi-stripped hulk in the garage!) to show whats involved. The front reservoir line screws into the top of the factory distribution block (via an adapter) where the original single master cylinder line resided. The factory rear brake line is removed from the distribution block, and that port is plugged. The rear line needed to be re-bent upward to screw into the supplied proportioning valve, which allows precise tuning of the rear brake bias. Well call this swap as bolt-on as it gets, with no cutting or flaring required. However, we did need to buy the 3/16-inch plug and a 3/16-to-7/16inch adapter fitting.