BMW: bmw gear box, input shaft, crankshaft

Question
will a 328i gear box fit in to a 325i coupe of the same age?

Answer
Jon,
 I am no expert on the E36, but I'm almost positive it will work.  Those engines (M50) used the same block, just with different internals.  Since the block is the same, the tranny mounting points should also be the same.  The only issue you might run into is the back of the crankshaft where the tip of the input shaft will sit.

 Hope this helps a little,
 Josh