i'm working on an 86 regal originally a v6 n/a car and now it has a small block chevy. i took a whole hvac system out of an 87/88 monte carlo v8 car. so far i have the blower motor working.

what is this thing and do i need it?

http://i281.photobucket.com/albums/kk237/rwrows/DSC00490.jpg

http://i281.photobucket.com/albums/kk237/rwrows/DSC00491.jpg


i'm also worried that i don't have enough brackets on the compressor. i have two on right now

http://i281.photobucket.com/albums/kk237/rwrows/DSC00493.jpg

http://i281.photobucket.com/albums/kk237/rwrows/DSC00492.jpg

http://i281.photobucket.com/albums/kk237/rwrows/DSC00489.jpg

i'm pretty sure i have the wiring completed inside the car. just need to wire up the compressor now and i'm not sure what else. any guidance would be greatly apreciated. thanks!!