Thanks for this write up, did this tonight. Wish there was more room in that damn foot well.
I am with most of the people here in that the duct work is the hardest part to get back in. Mainly that little one. Had I have kept reading I would have discovered the total duct work removal is not required, but anyway was to to bad. Big duct piece first (loose) followed by smaller duct piece, click together, then click the big piece into place.
I didn't replace, just WD40'd the motor to see if that will solve my issue. Otherwise ill go in there again and replace.