93 and earlier plenums

[Corvidae]

Are there any differences between '93 TT plenums and earlier years? I've read that they changed in 94, but I can't seem to find anything saying that a 91-92 plenum won't fit in a 93.

Turns out I need a replacement, as there are cracks under both PCV valves where they were tightened too far. Fortunately the EGR has been bypassed, so at least there's one major thing I won't have to worry about when pulling the plenum...

[emiliog2276]

https://www.youtube.com/watch?v=d4avj-c8wZc

[Corvidae]

Thanks for the link. I seem to have the early plenum, so I should be fine with a 90-91 of either engine type and be fine.