Severe Vibrations 95 f-150

[truckguy7]

I have a 1995 F-150xl extended cab 2 wheel drive with 4.9 straight 6 engine. I switched up my rims and wheels and went slightly larger and wider. Now I have severe vibration in the cab when driving 40-45mph. My truck has been in to a couple of shops and no one has been able to tell me what’s wrong or how to fix the problem. Can anyone help?

[mindswapp]

Nobby treads on tires, bent rims, worn u-joints, sloppy rear end, worn ball joints evident on wider tires, bad tire (bulge), even worn shocks can cause a vibration. What sort of vibration? does it rattle the fenders, or make your voice sound wierd? Hope my ideas help