65 cuda questions

Tim, thank you so much for your help bub. I did actually go through and inspect each brake assembly and replaced some components. I also measured the shoes and drums to make sure they were still functional. Then I adjusted them and put back together. Here is a pic of the passenger side front after i finished.

So yeah, today I will go through and replace most of the lines. Is there a particular brake fluid anyone suggests for these old systems? 3, 4, 5?