shaky truck

[tonka]

i have a question regarding a wheel shake that is from the back driver side wheel. i'm not sure exactly what it is from but i do know that it is not the wheel or the tire because i have rotated the tires and wheels and it did not change anything. i have been told several things "its a bad bearing", "the tire is out of round", "the wheel is bent". i wanted to know if anyone had any idea's as to what it could be and what i would need to do to fix it.

 

[DaveBen]

I would jack up the rear end and put it on jack stands (good ones) and spin the tire/wheels and look at them. That will tell you if the wheel/tire is out of round.

Dave

 

[jestersv]

If you rotated tires and nothing changed that rules out wheels and tires I would look into axle maybe bent I do doubt it though, could be a bearing but it would be howling, I would suspect more likely drive line, u joint or such. HTHs

 

[JLDickmon]

guys, could the be another "harmonic" truck?

 

[tonka]

what is a harmonic truck???

 

[JLDickmon]

I can't remember what years they had the problem, but some of these trucks developed a "harmonic" vibration... the cure was to put this immense damper weight on the frame near the back bumper.. it did kinda work on some of them...

 

[Zookie400]

http://www.superdutydiesel.com/forums/6-0l-powerstroke-engine-drivetrain/10069-dampner.html i couldnt find the thread that has a picture in it......

could it be a warped drum or disc that is pulsing on that corner?

 

[Zookie400]

http://www.superdutydiesel.com/forums/6-0l-powerstroke-engine-drivetrain/6390-one-piece-drive-shaft-solves-all.html

maybe?

 

[JLDickmon]

http://www.superdutydiesel.com/forums/6-0l-powerstroke-engine-drivetrain/10069-dampner.html i couldnt find the thread that has a picture in it......

could it be a warped drum or disc that is pulsing on that corner?

neither could I...
I do remember Robert saying that the tech went through several drill bits making the holes in the frame to install it, and the damper itself weighed several pounds..

 

[powerboatr]

oh yes
its an older TSB, if your under the 3/36 warranty its free
if your out of warranty its covered under the drivetrain and its 100 bux

i will go did around to find the number

http://www.superdutydiesel.com/foru...scussion/19022-rear-vibration-tsb-dealer.html
post number 5 has the tsb info