I took out the front axle from my VX - that is one way! It is only temporary. To my understanding though, you can unplug something that turns off the TOD but there is no mechanical disconnect to make the VX truly 2wd. Unless of course, you remove the front driveshaft, the transfer case always sends some power to the front wheels... that is why there is not much savings in gas mileage by unplugging the TOD.