"Centered" sliding glass door track

A professional from washington dc says:
why you do not have "centered" replacement track rail, your 80-105 and 80-106 are both off-centered, I need one that is 3/4 inch wide, with 1/4 inch raised rail of 1/4 inch high, where can such rail track be found?
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Dave Sr. from SWISCO responded:
The reason out 80-105 and 80-106 Sliding Glass Door Tracks are off-center is to give you more room to install the installation screws. At this time these are the only replacement tracks we have.
A quick learner says:
the one that I need is equal spaced, at about 1/4" for space-rail-space, this track does not seem to have any screws and is sitting on a wood block of the width, 3/4", with a "trench" in the middle and the track seems to have been pressed in, where can such a track be found, and how does one find out who made the sliding door, can not see any marking on the door anywhere? thanks
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Paul from SWISCO responded:
Please see if you can find an Architectural Testing sticker up in the top track or side track. I might be able to identify it for you with that information.
A quick learner says:
the full width of the track base is 15/16, can you give the width in 2 measurements, as from left and right of the rolling track, what is the thickness of the track base?
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Paul from SWISCO responded:
The thickness of the track base is 1/16". The measurements to the left and right of the rolling track can be seen in this diagram.
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