Replacement Parts and Tracks

A home owner from Levittown PA says:
Hi

I have bi-fold metal doors, 3 feet (1 door), 5 feet (2 doors) and 30 inches (1 door).
I am going to replace all the pins and tracks with your help (of-course).
Can you tell me the parts needed.
Thanks

P.S.
I researched on SWISCO.COM and I placed an order (1139482) based on what the parts for one of the doors is expected to be.
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Paul from SWISCO responded:

Thanks for writing into SWISCO. I notice that you have the old Slimfold series bifold door. I reviewed the list of the replacement hardware you recently ordered with us. Those parts are the newer style Slimfold door parts and they should work for your door. 

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