Most vintage electric conversions I have seen leave the transmission, drive shaft and differentials in place for convenience. Since electric motors have a much

Most vintage electric conversions I have seen leave the transmission, drive shaft and differentials in place for convenience. Since electric motors have a much broader torque band than combustion engines you can usually leave the transmission in 2nd or 3rd and just drive around, but there is nothing stopping you from rowing gears either. If the engine ever blows in my vintage car I'll think long and hard about converting it to electric. I wouldn't want to simulate sounds or vibrations of the real engine though. I'd want the experience to be whatever happens from swapping the engine for a motor.