Ok, so the 97+ tcase lever is shaped slightly differently than the 96 and down ones, so it won't fit through a 96 and down bezel without being shaved down. Knew about the slight change, but not that it didn't fit through the older bezel style.
Just looked at pics of both bezels, and they are clearly not cross-compatible (figures).
If this is how some of the 96 models came from the factory, then there HAS to be a trick to getting the later-model shifter handle through the older-model bezel without modification and we just haven't figured it out yet.
I don't think all the earlier models had the red stripe on the handle - I'm fairly sure my 92 doesn't, but it's been a while since I looked at it and now because of this thread I'll have to make a point of checking...