I will tap in to the single line that runs from the rear axle to the proportioning valve. I wanted it closer to the cab but I guess it wont matter.I do not have an emergency brake.I am running 1980 Caddy calipers.Vented disc's.
More control meaning I can isolate the rear disc's..IE Use the fronts only or use the rear for holding.Use both in normal driving.
Chuck
Happy new year