The entire brake line on my 2003 GMC Truck is completely corroded and I lost brake function while driving. It's good that I learned how to shift manually and know a thing or two about using the parking brake. So I drove slowly, downshifted the automatic transmission and put on the parking brake, approaching all the intersections/traffic lights on the way to the garage. I needed these Edelbrock parts to replace the entire brake line. Fits snugly on the pre-bent stainless steel tube I got from Summit. [It is not possible to obtain a pre-bent hose kit from GMC. GM doesn't make them. WHY ! The problem with these big boy automakers is that they want to brag about the great products they make, but put poor quality parts in them.] Stainless steel is one way to replace parts.