I cut the existing brake lines coming out of the master cylinder, going towards the front brakes
The sections of the line that was still attached to the master cylinder got hooked up to the "in" port of the line lock, the part of the line going to the distribution block got plumbed to the "out" port of the line lock
Both of those connections were made with flare nuts
I ran power from a keyed source to a toggle switch on the shifter housing to the line lock and grounded the other side to the chassis
