99 f350 7.3 u know when u come to a 4 way stop and they have the ribs in the road to warn you. that is what this is like. I have check my u joints and put on a new carrier barring and still does it in nuteral two untill i come to allmost a stop and then geos away.last night i pulled my rear hubs thinking bad barrings there but they are good however the parking brakes are rusted and the pads are lose from the shoes can this be the pest? I just bought new tires is it possible a belt could be lose in a new tire?this seams to happen after things are warmed up

 

u sure u joints are fine and how is alignment. i had vibration changed u joints went away right at 45mph mine looked good and moved alright just were starting to get dry

 

yes i have replaces the u joints and carrier bearing and new alignment and tires

 

Did this start before the tires or after. I had ford tear my hole front end apart in idaho one time and it ended up a tire. They were so good about it, after all the work they didn't even charge me. Unheard of here in California, at least in my area. Chet

 

Its your brakes. My Alfa Romeo Milano Race Car has the same problem. You would come rolling to a stop and about 4 seconds before you stop, you would get a "dry chatter" and if you put it in first and let go of the clutch while letting off the brakes, it would go away. but if you touch your brake pedal even in gear you will get that chatter vibration. All this in the last 4 seconds before stopping.
It kind of feels like maybe your pilot bearing in your clutch dried out and your clutch is vibrating while "free". It was my rear disc brake pads. This is a rare thing to happen, if this is what you have, its like one in a million. but your not the lucky winner.

 

after the tires they been on a month goodyear silver armer. yea a month ago i had a bf good at tire tread peel off and sheaded my brand new bed on the driver side scard the xxxx out of me

 

its not when i put on my breaks but the parking break on the pass side is rusted lose from the shoe when i pulled the hubs off . just wasnt shur if they can cause such a vibration