Bifold track and necessary accessories

A handy person from Philadelphia, PA says:
Hello!

I have bifold doors installed, but want to replace the track with the brown one (23-450).
I plan to re-use the bottom hardware.
For the top part of the door, I assume I should get new hardware from you.
Is my understanding correct, that along with the track 23-450 I'd need a top pivot guide (23-121), pivot bracket (23-312), and spring loaded top pivot (23-112)?

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Paul from SWISCO responded:

If you are just replacing the top track with the 23-450, you will need the 23-121 & the 23-115. If you want to change the bottom corner bracket, then see 23-312 & 23-151.

23-115 : Spring Loaded Top Pivot
Spring Loaded Top Pivot
23-115
$1.37
VIEW >
23-121 : Top Pivot Guide, 7/16
Top Pivot Guide, 7/16" Diameter
23-121
$1.35
VIEW >
23-151 : Bottom Pivot
Bottom Pivot
23-151
$1.27
VIEW >
23-312 : Pivot Bracket
Pivot Bracket
23-312
$1.85
VIEW >
23-450 : 24
24" Bifold Track, 2 Door (7/16" pin)
23-450
$5.99
VIEW >
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