has anyone had the vibration in the with 3.73 rear end and if so is it fixable? I have the 2004 FX4 screw F150 and i'm not sure if its just the off road susp. of im getting the vib. I' ve had a 1999 and a 2003 F150 no problems with either truck. love the new body so i made the leap.

 

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