Right: big block + removable bellhousing = FX/MX/FMX family of transmissions which are commonly called cruisomatics. Small block + removable bellhousing = C4. Any engine + One piece trans body = C6. This link may help.
http://www.autotran.us/fmABpg21.htm
<font size=-1>[ This Message was edited by: jakengle on 3/17/06 7:42pm ]</font>