joint protective boots

[Snoopy]

Hi. Anyone knows difference between these two parts: 443 498 203c and
431 498 203c? The first one is listed in family album as a correct
joint protective boot for my euro '90 100 2.3 with 4 speed automatic,
as well as for others 2.3 with manuals.
However, I can't find it in any local shop (not US). All shops carry
the second part #, which according to album is suited for 2.3l 3 speed
automatic AND all previous audis starting from 70-something. I'm
looking at it right now, seems like a proper full set (nut, two
locking rings and two simple, grease). Maybe anyone has any thoughts
before I rush in to shop for exchange, while my car hangs parted out
in a garage?


   Snoopy
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