I got a wild hair, ripped the bed off, tank out, and replaced all the lines at once. I bought rolls of steel. I took the old lines out (fuel and brakes) in one piece. I laid each one on the ground and duplicated the bends , and then flared the ends. Then I put them all back brandy-new. Of course, I cleaned up all the rust and crap on the frame and suspension, and painted everything with Chassis Saver before I put the tank and bed back in.