1978-88 G-Body Master cylinder to Proportioning valve Brake Lines OE Steel 2pc Fits the following cars Only Chevrolet - 78-88 Monte Carlo, 78-83 Malibu, 78-87 El CaminoPontiac - 78-87 Grand Prix, 78-81 LeMans, 78-80 Grand AmOldsmobile - 78-88 Cutlass Supreme, 78-84 Cutlass Calais Hurst Oldsmobile / W-30, 85-87 Cutlass Salon, 78-83 Cutlass Cruiser WagonBuick - 78-81 Century, 78-87 Regal (NOT Grand National or T-Type) This is the Master cylinder to proportioning valve lines. All Lines are preformed and ready to bolt into place. Identical to the originals, with all the correct fittings and wrap.