I don't think you can ever tell how long it will take. My SRT-10 just arrived and I only ordered it 6 weeks ago. I have ordered many new cars and trucks (Fords) and this was by far the fastest I ever got one! One F-350 I orderd took 6 months to the day and most others were right around 3 months. It also makes a big difference if the dealer has good allocation. At this point you might want to consider holding off and getting an "06" as the "05" run will probably be finished soon.