My truck was originally a 2WD C10 with a Turbo 350, but now its a 4WD with 465/205. Its funny that theres still the automatic shifter on the column and the starter disable still works for the automatic shifter. So if I put it in Drive, you really can't tell it because I took off the shifter indicator. It won't start unless its in the Park or Neutral position. Second, I don't have the buttons on my outside door handles. You have to have long skinny fingers to get inside the door handle to push the button, and if your finger slips to the side while pressing the button, its over for your finger, kinda like a chinese finger trap thingy. Third, I can put the transfer case in neutral. With the combination of the three, I figure it would take a thief a while to figure it out. Hope this helps. I usually leave my keys in the ignition at home. I live in a small town of about 750 people, so I really don't worry. Plus my dogs will bark and probably annoy the thief to death, unless I get to him first.