Hello, i have a 2006 xlt 4x4 super cab that has a squeal that I can't find. Sounds like it's coming from the front driverside. It starts once I get on the highway at 80Km. I checked the u joints and have a bad one on the front drive shaft, thought it may be that but took the drive shaft off and it is still making the noise. Anyone have any idea on what this squeal is.
Thanks

 

Check the hub bearing. Take the wheel off and rotate the spindle by hand and feel for any drags while turning.