Parts for old sliding bi fold door (1970s)

A quick learner from Colorado says:
We have bi fold doors that either don't slide on the top or bottom. I need help to identify part #'s. Let me know if you need more photos.

Thank you for your time!
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Paul from SWISCO responded:

Thanks for reaching out to us. It appears you are showing the old Float-a-way bi-fold door parts. Unfortunately, your parts have depleted in inventory. However, we do carry the new style Float-a-way parts such as the 21-022, 21-023, and 21-024 which should work for you. Review the specifications and see what you think. 

A quick learner from Colorado says:
Thank you!! I will try your suggested parts.
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