The pieces of my drivetrain are coming together.  What you see there is the transmission out of a Lexus LS600HL (known as an L110F), plus the transfer case from a 1992 Toyota Land Cruiser 80 series (known as an HF1A), as well as the Inverter from the Lexus LS600HL (bottom). The high voltage leads from the battery pack (I don’t have one yet) go into the inverter, and the two orange leads from the transmission plug into the inverter.  There is a separate controller (I also don’t have yet) that will talk to the inverter and tell the transmission what to do.

There will be nothing connected to the front (left side of this photo).  That’s where the V8 gas engine used to be.