67-72 Suburban cab leaks.

[SCC2560]

So I have a 1972 Suburban C20. It is my daily driver and I have been trying to clamp down on all the leaks in the cab since the rain has started here. My interior is fairly new so trying to keep it dry and from my understanding these things are notorious leakers when it rains. Was hoping to hear from other Suburban owners, where they found leaks in there rig and what they used as a solution?

So far I have redone the windshield seal and found that on the drip rail above the front windshield there is a seam that leaked strait into the cab.. 2 leaks down who knows how many more to go!!! Thanks.