1983-86 Jeep CJ5, CJ7, CJ6, Scrambler Master Cylinder Brake Lines Power Drum or Power Disc 2pc OE Steel These are the 2 lines that run from the master cylinder to the valve on the frame and are for power drum or power disc - jeeps with power brake boosters, they are the same for disc and drum cars. Made in the USA by Inline tube and AMERICAN Manufacturing Company. These are all preformed ready to install.