Hello all! First time poster here, thanks for having me.
I have a 04 expedition with the 5.4 with the 2wd,awd,4wd and 4 low options.
I get a bad vibration starting at 35mph. Things I've done so far as had tires balanced and replaced rear end fluid. I put the ass end up on jack stands and still have the vibration. My next thing I'm going to try is taking the tires off and spin it up and see if it's still there.
What do you all think it is? The drive shaft has a lot of surface rust on it. There is no noticeable play in the ujoints. Wheel bearings replaced with the lifetime warranty ones about 40k ago and it doesn't make that kind of noise. I'm just wondering if anyone has had this problem and could save me a few steps in troubleshooting this.
Thanks!
I have a 04 expedition with the 5.4 with the 2wd,awd,4wd and 4 low options.
I get a bad vibration starting at 35mph. Things I've done so far as had tires balanced and replaced rear end fluid. I put the ass end up on jack stands and still have the vibration. My next thing I'm going to try is taking the tires off and spin it up and see if it's still there.
What do you all think it is? The drive shaft has a lot of surface rust on it. There is no noticeable play in the ujoints. Wheel bearings replaced with the lifetime warranty ones about 40k ago and it doesn't make that kind of noise. I'm just wondering if anyone has had this problem and could save me a few steps in troubleshooting this.
Thanks!
