318i m40 auto to manual - 325i m20 box fit?

[e30Alex]

As above, will m20 manual box fit m40? Reason for this is eventually I will drop in an m20 and don't want to have to buy another box. Any suggestions on prop and diff? Thanks in advance. Alex

[bss325i]

It will bolt up but sit at the wrong angle so you would need a modded gear linkage and custom mount.

[bss325i]

It will bolt up but sit at the wrong angle so you would need a modded gear linkage and custom mount.

[e30Alex]

ok thanks for the quick reply. How about the other way around, ie m40 man box (getrag 240???) to the 325i? I presume looking at the wiki pages that the box will fit, but what about diff and prop? Thanks again, Alex

[magpie]

just do it properly, spend some £££'s and use the correct parts for each engine and save yaself a headache .