Hi I special ordered this truck and have the 6.2 liter and have had a noise when it shifts from 4th 3rd or 2nd into first when u are coming to a stop at a light and have to stop quick. It makes a clunk ths has been going on since I had 8000 miles I now have 26,000 miles but they figured it out that it was transmission at 18,000 miles. They have flashed the computer and no difference. They then had to take to trucks that were the same drivetrain and suspension package for a ride and brand new they Mae the noise not quite as loud as mine but it makes it. Ford has told them that it is normal characteristics for the transmission but that's a hard pill to swallow when you just paid over $54,000 for a special ordered truck !!!!!!!!