The service bulletins may be posted online somewhere (I have not found them yet). I ordered reprints from ClassicParts or one of the other vendors so I have the 49-50 years which I will pull out and look at. I have pictures of the bell housing and stock mounts I will post some tomorrow. They will bolt right up to your bellhousing and crossmember with no problems. I actually swapped out my 50 crossmember for a 54 version/bellhousing/mounts/engine and it is night and day different on vibration, the 54 is really a good upgrade.
http://community.webshots.com/photo/2656458530102454676QmfUEF