i have a 03 supercab and am having a front end humming noise. the noise is speed sensitive and goes away when i am turning right. i have tried replacing both front hubs with no change in the sound.

 

Check the inner and outer seals at the axle on both ends of the knuckles. I am having the same trouble. I disassembled my hub assembly to find both seals completely worn to the point where a ring off the outer one was dangling. Also, the hub assembly looks worn out.

 

i have a f 150 my and have cv joints