Leigh Bi-Fold Doors 4' track and parts needed

A home owner from St. Louis says:
I have some Leigh Bi-Fold Full-VU Metal Doors Part # 8433. I have one bedroom with the top track still assembled and hanging from the ceiling. I have the bottom piece of wood in place, but need the track that will work with this door along with the parts. The track is right around 4' wide. Do you have the pieces (or substitute pieces) available for me to install this door again? if so, which pieces will i need? I am assuming i will probably need a new door accessory kit as well.
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Paul from SWISCO responded:

For your top track, it looks like you have a 21-205 pivot bracket and 21-108 nylon guide. Do you still have the top pivot pin that goes into the 21-205 and the guide pin that fits into the 21-108

If not, then you will ultimately have to substitute the bottom track since the original track isn't available anymore. The new track will be the 21-404 and the parts associated will be the 21-002 bottom adjusting pivot pin and 21-044 bottom guide pin. You will also need some 21-150 nylinders to replace the worn or missing ones and 21-277 track bumper.

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