So after talking to the guys at Newell, I decided to do a temporary fix until I decide if and when I go to the base to have this air box fan situation handled. I went to the hot rod shop and bought a few 2.5" tees and rerouted the working dash air and defrost to the drivers side. It pretty much took me a few hours once I got the dash cap off, but now I at least have defrost, vent and floor air blowing now.
The oem air box manufacturer is no longer in business of course, so I can imagine what the cost of this repair would be if the whole unit needed to get replaced.
For now I can live with this fix.
Onto the next project.
home: Southern California
05 #746 quad slide 2000i, (She's Now living in FLA Again)
Steerable tag
Detroit Diesel series 60 515 hp
Allison trans
Toad 2013 Avalanche Black Diamond edition 4 wheel drive