The othe day Idecided to try out the 4 wheel drive again just to make sure it was working fine... 2003 F150 FX4 5.4l MOTOR ( cREWCAB ) Ok so I am in the parking lot at Lowes I put the truck in 4 low and it worked fine ..But it disenguages with a clunck .. Also when I turn there is this horrible vibration.. So I put it back in 2 wheel drive and start driving home , All of a sudden when I hit the brakes the whole truck starts bouncing,, Then to make matters even worseMy right front tire is starting to cup really bad ( I noticed this when I got home... I am thinking I need to replace the front hub bearing assembly ( about 150.00 per side ) Is this going to be a hard Job ??? Also my ABS light has been on for about 2 weeks now... I have heard a whirring sound in the front end and it sounds like a train ... So I guess I need to start looking into this as someone told me if the bearing is bad my wheel could come off ..
