INLINE TUBE OEM PLB71P1- 1971-72 GTO 442 GS DISC BRAKE ONLY, Wagon, 4 Door Right & Left Front Frame Crossover Lines 2 piece These are the lines that run across the front crossmember frame to get fluid tot he right and left fron brake hose. They screw into the factory frame valve and go to each brake hose at he wheels. These are the same for all the different brakes - fit power disc, manual disc, power drum, manual drum. THEY ARE FOR FACTORY STOCK CARS WITH NO MODIFICATIONS. This is an inline tube exact reproduction of the original with a tin coated steel tube OR 304 Stainless steel tube, with the correct color end fittings.