As far as I know the front bumper cover is the same between 89SC & 92-93 Thunderbirds. The 93LX bumper cover & SC bumper cover are basically the same, the 93LX cover is what's used as a replacement for the 89SC because the 89SC cover with the logo is no longer available.
As far as the side pieces go, ALL 89-95 Thunderbirds share the same doors & fenders.
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