INLINE TUBE OE Steel CCB84J1 1984-89 CAMARO / FIREBIRD - Preformed Master Cylinder to Prop. Valve Brake lines 2pcAll 82-83 Camaro and firebird had standard tube nut fittings - 84 and up went to metric. So many are the same shape lines but the fittings change to metrics. Preformed Hydraulic Brake Lines - Original Equipment. These are all made exact to the factory originals. Made in the USA OE steel tube. Preformed hard Metal Brake Lines. These are the details that separate the first place cars from the rest.