When I picked up my 04 in january I noticed that every time I turned right the back end would shuter when I brought in my truck the said it was normal (3000 miles) now it seams they want to replace the rear end under warranty ( 6000 miles) I have since sold my truck to my brother and now have a 05 F150. So if any one has this problem I would take there truck in as soon as posible. Something about a clutch pack.

 

The bad clutch packs is a well known problem with the 04. Always good to give some new people a heads up though.

The repair doesn't take very long. I had mine done a couple of times.