Hey guys,

As simple as this sounds, wash your back rims out. I had this happen to me and many people I know. They just seem to be full of stuff which causes a vibration at higher speeds. If that dont help, Than like every other post, its worse

 

yeah i know if u get like mudd and stuff in ur rim it will throw it off balance, bu thanks brotha!!!! and plus it i had a busted belt wouldnt it shake all the time? at all speeds? and not just 65? just curious cause u guys got me thinkin the worse

 

HOSS67 "busted belt shaking all the time?"

No not necessarily depends on how many bands on the belt are broke and where they are, your contact patch on your tires change at different speeds, the slower your going the more rubber you have on the road, and as you go faster your tire actually grows thus giving you less contact surface touching the road, and also putting more stress on the tires internals. Tire temps also change the tires characteristics, the faster you go the more heat builds in the tire which also causes expansion, and the slower your going the cooler the tire is and it shrinks again. Hope this helps you understand how different speeds affect tire wear problems. If you don't feel it anymore, guessing it was a quirk or something. If you hit a pot hole recently, or ran something over like a rock at a good rate of speed I would lean toward a belt issue, like I said earlier, the installation now days is pretty smooth with the newer machines and there is less room for error, except when your talking low profile tires that are a bitch to mount on a rim and are always prone to problems or installation errors because of having no side wall to stretch to pop the bead onto the rim. With Truck tires there is a lot of side wall (most of them) so it usually isn't a problem. But then again it depends on the garage and if the person installing the tire is actually trained and qualified on the machine. I am guessing if it is gone it was something hung up under the truck in the suspension and it finally let lose which can happen when jacking a vehicle up and then setting it back down.
Good luck I hope what I gave you helps, just keep an eye on it, and if it comes back switch out the tires first, then if it's gone with the old tires on get the new ones checked, otherwise your wasting your money...
Later.

 

^^ thanks for explainin that bro, i appreciate all ur help, i hoep its just a quirk but if it comes back i will mount my old 285s on my stock rims and change them all out and see if thats the problem, thanks again

 

i had an 07 with 20 inch wheels and it had that problem and it wore my tires down and i went a tire place and they said improper alignment, improper air psi, and improper balance.

and from my opinion..check your ujoints, if you have carrier bearing..check the wear on that...but it just kind of depends on where you are feeling the vibration...steering wheel only...or does it seem to shake the whole truck..if you have your stock tires and wheels...swap them all out just to see if it does it then...

do you know how to check ujoints or slack in rear end or output shaft on tranny?

 

yeah i know how to check everything and already did, the ony thing i saw some slack in was the right tie rod but that would cause a shake in the steering wheel, and the shake came from like the whole truck, was not in the steering wheel but like i said it just all of the sudden stopped, if its starts again willl be swapping out the tires with my old ones to see if thats the problem... i hoping it fixed itself.. will keep u guys posted if it comes back or stays normal