The stuff between the roof and the drip rail...is it a mastic, ie. squirted in and let set or is it a piece of tar strip? Mine is seperating from the roof leaving a nice crack. 65 Barracuda.
Dig it all out or it will keep cracking. Spray some primer, sealer or what ever you have on any bare metal spots. Lay a nice bead of seam sealer. Use a small brush or your finger with a glove on & some paint thinner to smooth it out.
