these trucks have a not so good design with the rain gutter around the roof.the water gets trapped and leaks under the seam.the guter needs to be cleaned and new seam sealer put in. my 62 has the same problem...our only option is pieces from doner cabs and fabbed pieces.as you can see from my pic i removed the roofcap and will be attacking the problem from both sides..heaven help me![IMG]http://i48.photobucket.com/albums/f216/applebag/Newpics029.jpg[/IMG]