I need help. I purchased a 2010 6.4 crew 4x4 about 9-10 months ago. The truck has a 5' lift and 37 tires from the dealer. Lift, etc is under 3 yr-36k warranty. Shortly after delivery the truck started bouncing bad at around 55mph. It would only last a few seconds and quit. It was bad enough to sometimes chop your voice when speaking. Transmission also has vibration in it. I take the truck to the dealer. I get it back the next day with "No problem found" I have it a week and take it back again. Steering is loose, bouncing, and trans vibration. I asked for a tech to ride with me so I could show them. Tech comes out and looks at truck. Says here is the problem. Pitman arm is stripped/loose. They order new pitman arm, I also ask them to check the trans. when I get it back steering is fixed. Truck has around 5k miles. Same other problems still exist. I take it back. "no problem found" I take it back again. This time they think it is a tire issue. They order a new tire. While the tire is ordered I notice that the rear axl is crooked. They replace tire and fix axl. (7k miles) Bouncing still going on, transmission still vibrating when I get it back. A month passes and transmission light comes on. Truck is in the shop for over 3 weeks. When I get it back it has a new transmission and a new particulate filter. (9k miles) Apparently filter when bad while they had it??? I still have vibration, bouncing and a new problem. Play in steering has shown up again. (10.5 K miles) I call Ford asking for replacement truck or a buy back. I take it to dealer and Ford sends out a engineer. Ford denies my claim due to engineer finding no problem with truck. However my truck is still in shop...tomorrow will be two weeks. They are waiting on parts for "no problem found" I know some of the parts are a new pitman arm and new steering stabilizer. I have had it with Ford. What can I do. This is the 4th ford truck I have owned, and the last. Their customer service is a joke!:dunno: