I have two volvopenta 270 outdrives that bolt up to ford smallblocks. One is a hollman Moody the other I have no idea. The "case" between the bellhousing and transom shield is called what? It has what I would call a intermediate drive shaft that has two male splines.One catches the flex plate on the flywheel the other mounts to universal shaft going to the transmission.The Holman Moody and the other have identical d.shafts.The difference between the two and I would like opinions on which to use is this.The h/m has only one sealed bearing part number bca 5206vdd. The other has two bearings riding on the dshaft and are grease zirk bearings.Thanks Barry