I have three-on-the-tree with overdrive on my Studebaker. You can leave your truck unlocked because even if someone does try to steal it and manages to get it started, not too many people will know how to shift it nowadays. As good of a deterrent as "the Club", methinks.Jena said:My truck is a '64 Kaiser Jeep J200. It has a 6 cylinder...231 tornado??? I think that's what it is. Three on the tree...how much fun is that???? hehehe.