 My 2005 XLT has had a vibration in it that you feel in your rear since the day that I picked it up. Dealer tells me that it's not their problem, to deal with Ford. Ford tells me to take it back to the dealer. Truck has been in the shop 7 times in 8 months and is just as bad as at the time of delivery. 10 new tires, drive shaft indexed, front end alignment, spin balance multiple times. I am applying for the Lemon Law as Ford told me that they were unwilling to even send a Field Engineer to look at the vehicle and they suggested that I take it to a different dealer. When Ford files for chapter 11, I will have a party. It's no wonder they are in such bad shape. They could care less about quality