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Yes, but the center one to the dual vent. The one that runs under the column to the drivers left vent has the same number in the diagram. It is D3TZ-19B680-B. Thanks.
Since you said center flex duct I understood what you meant. If Justin does not have one, PM me. I am 98% I do, if I can just find the thing in my parts shed.
D3TZ19B680B - Center A/C Duct
Fits: 73-79 F100/350 & 78-79 Bronco w/ AC
I guess I'm in the same boat as everyone else. Mine looks like a slinky with hair. The ribs are still good, though. Seems like there would be some type of material you could use to recover the structure.
Measuring the perimeter of the duct, it equals a round duct the would be 5.5" diameter. I don't see anything that size. The single driver's side duct is about 3.8", and I was able to get 4" aluminum flexible dryer duct. That should work fine.
I suppose I could use the 6" version of the dryer duct and make it work on the center duct, but I'm sill leaning on recovering the original duct structure. I haven't decided what to use, but I am leaning towards aluminum tape.
I decided to refurb the original by removing all the old fabric and recovering with aluminum foil tape inside and out. I'm pretty pleased with the results. It took less than a couple hours while watching tv.
I sorta did the same thing but used thin neoprene from Joanne fabrics. After measuring it my wife sewed it into a tube and I carefully rolled it over the ribs. removed the clamps but because of the tension of rolling back the neoprene on the ends it stays put.