Chevrolet Blazer Vent Replace/Remove

Just Recharged The A/c Unit. When I Am Driving, I Always Get Heat On The Floor Vent. And When I Put The A/c On, All I Get Is Very Hot Air...

When I Have The Selector On Floor Mode, I Still Get Heat From The Vents (75%) Compared To All The Heat To The Floor Area (25 %). The Defrost...

I Had To Replace Some Lines Up Front For The Four Wheel Drive And Some How Lost The Vent Tube That Runs In To Threw The Fire Wall To Run The...

So The Vents Won't Switch Around. Heat Is Only Blowing Through The Dash Vents. Nothing Comes Through The Defrost Unless I Close...