Bi fold replacement hardware

A quick learner from Boston says:
I have an old Leigh Metal Bifold door that needs a new bottom track, cap and bumper. Approximate measurements for the existing track are: Length 3' Width 1" Height 15/16". Would your Part 21-401 track be an acceptable replacement and what other parts would I need to finish the set up for the new track?
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Paul from SWISCO responded:

Your track is no longer made, but we believe you can use the 21-401 track,

However, you will need to change the two bottom pins to the 21-002 threaded pivot pin and 21-044 spring-loaded guide pin. You will also need some 21-150 nylinders to reduce the size of the holes for the pins to slide through.

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