Fits 1968-1981 Chevrolet Camaro/Pontiac Firebird with REKUDO JL8 Rear Brake System;Use these Brake Hardlines with brake hose kit RK-402-2 and REKUDO JL8 Rear Brake Calipers on the 1968-1981 Camaro/Firebird - Fits Factory Rear Axles with Staggered Shocks; Material - Stainless Steel for Tubing, Tube Nuts, Mounting Brackets and Clamps ; 3/16-inch Stainless Tubing with Stainless Tube Nuts - 3/8"-24 Inverted Flare Male; Preformed Stainless Steel Tubing - Connects from Center Tee (on brake Hose) to Outer brackets for Caliper Hoses; Fits 1970-1981 Camaro / Firebird with REKUDO JL8 Rear Brakes on GM 8.2", 8.5", or 12-Bolt Rear Axle with Staggered Shocks; Use with Rear Brake Hose Kit RK402-2;