alright i was driving the other day trucks running fine nothing different. I have a bad wheel bearing have had it for a month or so now, never vibrated im driving and all of a sudden i get to 40 and the truck starts vibrating like a damn cell phone when someones calling. i start to slow down and pull over and it does it til like 20 then goes away come back around 35 or so and gets ridiculously worse at like 55 60 70 BUT heres the weird thing it stopped for two days then came back all day the next day. a day after that i drive to atlantic city doing like 85 90 the whole way and 105 in one spot just to see plus i drove around down there and didnt do it once to there or the way back which was like a total of 2 hours parkway and a hour or 2 down there. 3 days later im home doing 45 and it starts again? any idea on what the hell this could be? i dont believe its the wheel bearing or itd do it all the time but i dont think its the trans because it does it when i do 50 and put it in neutral and coast also? so what the hell

 

you've got a bad vibration and you're driving 90 and 105. uh huh.
check u-joints in front and rear drive shaft, also front axles and bearings.
keep driving 105 and you'll find the problem pretty soon.

 

Sometimes wheel bearings will only make noises or cause vibrations at certain speeds. If it's making a high pitched whining sound, it could be the bearing. Jack up the truck and see if you can shimmy the tire left to right (while someone holds the steering wheel).

 

well the only reason i did 105 in the first place was to see if it did it at high speed. which it didnt it didnt do it at all the whole time there even driving 40 or 50 my front right wheel bearing is shot definitely....but why would it only vibrate once in awhile around 30 and up but then some days it doesnt do it at all

 

like today it did it first time i drove my truck for the day but then tonight i went to my friends and it didnt do it at all but on the way home from his house it did it....this is what confuses the f**k outa me

 

You already have a known issue with the bearing, so you need to fix it. What is the point in trying to diagnose it until that is taken out of the equation.

 

+5! Take care of the known prob and than go from there.

 

well moneys a little tight right now and i dont have like 100 something bucks at the moment for a damn wheel bearing duno if anyone has any stock ones without abs laying around?

 

You have to stop beating the hell out of it, since you already know it's bad, which will add to the life of it, while you save up some money for a new one.

 

105 in a truck with a bad wheel bearing...wow. Fix that and see what happens. There are also threads about the "death wobble" on here...could be that. Good luck!