I recently purchased a factory correct A/C setup for my '66, C-10. I think I have everything except the A/C compressor and mounting brackets. Has anyone done this swap or is there a site that gives a "play-by-play" of the swap? I found tech articles online for the power steering, power brakes and sway bar installation and was hoping for the same type of tutorial for the factory A/C swap. I am aware of a few of the quality aftermarket A/C setups, buy opted for the factory A/C setup. My truck currently has the deluxe air controls (3 knobs). The setup includes an uderdash heater assembly that replaces the existing unit. It also has the underhood assembly that houses the heater core and blower motor. Does the existing assembly need to be replaced with the new one? Any info on this swap would be helpful and appreciated. LILRD66 BCKBLK