There are 2 styles of clears for the e34. One is the Classic Clears with just the turn signal Cleared.
The other is the so-called "Crystal" Tail - it has the clear part in the middle.
This is a heated debate as there are strong feelings about both.
I personally have the Hella Smoked tailights. As far as compatibility - I believe they are across the whole e34 line - JT