I had the same problem with the rear, during turns and take offs. I had the truck back to the dealer about three times before they finially were pressed to replace the rear clutch packs. All was well after that for 2 months, untill I developed a banging or popping noise from trans and rear ocassionally when i start from a start on a flat surface. Its worse when starting out on a hill or incline. If they cant resolve these issues, Im gonna pursue the Lemon Law. 02 F150 XLT FX4 5.4L