Floor install

Sounds and looks like these guys have been there and done that. My 64 Savoy is on the rotisserie now and they do say some stuff that will help ya. Keep this in mind. On the bottom of the original pan are some brackets for various cables and maybe some seat bolt reinforcing plates. There was with mine. Pay attention to the locations before cutting. Cracked is right. Cut all you can out and then get after the rail. I used an air chisel, die grinder, spot weld drill and a 4" grinder. One tool wont do it all. I forgot to mention a hammer. I like jackin with these old cars. Dont tell me i cant fix one cause i'll show ya i can.
Small Block