Chuck everything if it 38 years old and replace it with new. The line on my Dart looked good but I cut it open and was rusting from the inside out. As important as the brakes are don't skimp now.

56 Plaza 63 D100 step side 67 Coronet, 68 Roadrunner, 69 Super Bees, 69 Coronet 500 convertible, 70 Roadrunner Post, 79 D150 360, and a severe case of Mopar a,d,d