Cabin Heat & Ventilation Complete (Almost)

I decided I wanted to go ahead and get the scat tubes installed so I had a good idea of how much room I have left in the center. It didn’t take too long to do as there’s really not much to do here. I just need to add the RTV on the rear scat tube to protect it from abrasion which I need to see what they mean by that. Do I need to slather the top of the scat tube near the rear where it will make contact? Or what? lol It doesn’t provide alot of details on that so I’ll figure it out when I get to that stage of the game.