I'm trying to install my A/C delete box, but I'm having a bit of trouble. The box in the picture isn't the exact on I have but it looks exactly the same.

Question 1: How do I seal the bottom of the delete box to the firewall. There are 2 white clips with threads in them at the bottom of the box but I'm not sure what size screws I need. Also do I need to thread those screws into the clips from the interior?

Question 2: Can I use the same fan/blower motor that I removed from the original A/C housing

Thanks

 

1. I don't know
2. the cag on the ac box is different than the non ac box.