engine parts taken from e34 m20 to e30 m20 b25

[markus_74]

hello, Zoners

sorry, may be I'm not in the proper forum, I have put some post there but no one reply may it is not enough people visit the forum.

I just want to know that recently I bought an e34 520i m20 b20 engine and I want to use in my e30.

I have some question.

1.My friend said that I should change the oil pan from e34 m20 and change it with oil pan taken from e30 m20, does is it true? or I still can use my 34 m20 oil pan.

2.I have read at wikizone, that 320i gear box could use with m20 b25 without any problem.

my question, does the gear box from e34 m20 520i is same with e30 320i so I can use it?
and can I use the propeler shaft and differential from e34 520i to e30? what ratio? good or I should change with?

wiki zone said that I can use my old 318i prop shaft but how about the differential from e34 m20 520i? is the bolt, output flange etc is plug and play?

Thank you in advance.
markus