My cars recirc door got stripped out just like almost every other xtypes, I didn't like the fix jag gave with tsb #x-t412-02 due to the fact it's a permanent attachment so I made these 3d printable models that add a spacer in between the motor and housing a spacer you can glue into the door then slide the motor into the spacer so you can replace the motor at a later date. I printed it out of asa and it held up to 100f days, I used a pair of wire cutters and cut a longer 2' #8 metal screw and pressed the shaft spacer into the door.

link the model here, https://www.thingiverse.com/thing:6726623