turn the wheels one way and reverse see if it is real noticable. If it is and the truck is off warranty drain the rearend oil get two bottles of additive from a ford dealer, and replace with 80w90 rearend oil NOT SINTHETIC OIL... Go to a empty area go around in a circle one way 6 times turn the veh and go the other way 6 times. Wait about a week it should be gone. Master tech from ford dealership for 13 years. |