[collins10672]

most people and body men would cut the whole top off and replace it with another top.i think if i were doing this and a friend of mine did this repair.he cut the roof skin loose by drilling out the spotwelds with a spot weld cutter.take windshield out.drill out all of the spotwelds loose from the inner roof(headliner)panel.replace with another visor panel and i would blast and prime the replacement visor panel.reinstall visor panel.i would prime and paint the top of the inner roof panel.replace sound deadening material,they had it when new.replace roof skin and weld where you drilled skin loose.grind and dress spotwelds.prime roof skin.last but not least absolutely re caulk around entire gutter.you should not have any more problems with it.a little history about these trucks is they (the cab)was welded together in raw metal before being primered.when the caulking gets bad water starts seeping in under the roof skin and starts the rusting process.only the best examples of these trucks that have been kept in the dry part or all of their life will be rustfree in the roof.