Vibration running out of ideas
05-20-2008, 10:13 PM
#1
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Vibration running out of ideas
hey guys,
im going out of my mind/ wallet trying to fix a vibration/ shaking im feeling from the seat or cabin area.
I DO NOT feel it in the steering wheel at all, it does not pull or anything.
it ONLY shakes at about 60-70 mph.. ( my main driving speed)
i see things in the truck shaking and seem to come from under me.
steering feel and tracking is fine..
so far i have replaced all ball joints, and track bar, other parts are "OK" but not great.
alligned 2 times, tires rotated, none of that helped, im thinking it is not the front end at all, b ut something further down the line...
i did notice the large skid plate was severly bent upward under the x-fer case but not touching anything..
what to do or check??
and how.
thankyou sirs im at a loss
im going out of my mind/ wallet trying to fix a vibration/ shaking im feeling from the seat or cabin area.
I DO NOT feel it in the steering wheel at all, it does not pull or anything.
it ONLY shakes at about 60-70 mph.. ( my main driving speed)
i see things in the truck shaking and seem to come from under me.
steering feel and tracking is fine..
so far i have replaced all ball joints, and track bar, other parts are "OK" but not great.
alligned 2 times, tires rotated, none of that helped, im thinking it is not the front end at all, b ut something further down the line...
i did notice the large skid plate was severly bent upward under the x-fer case but not touching anything..
what to do or check??
and how.
thankyou sirs im at a loss
05-20-2008, 11:59 PM
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Put it in neutral with the rear tires off the ground so there is no tension on the drivetrain. Spin the shaft as you try to wiggle it side to side. If there is any play or slop in the joints, you need to replace them.
If you have lots of miles on your truck and don't lube the u-joints regularly, I'd replace them anyway. They're not too spendy, and they definitely don't last forever.
Not too tough to change out on your own either.
05-21-2008, 12:09 AM
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Put it in neutral with the rear tires off the ground so there is no tension on the drivetrain. Spin the shaft as you try to wiggle it side to side. If there is any play or slop in the joints, you need to replace them.
If you have lots of miles on your truck and don't lube the u-joints regularly, I'd replace them anyway. They're not too spendy, and they definitely don't last forever.
Not too tough to change out on your own either.
If you have lots of miles on your truck and don't lube the u-joints regularly, I'd replace them anyway. They're not too spendy, and they definitely don't last forever.
Not too tough to change out on your own either.
i willl try it when i get back home!!
the u joints are the ones where they connect the drive shafts to the diffs and x-fer case right?
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05-21-2008, 01:06 AM
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great!! pics are wortha 1000 words
that helps alot
after reading all the bad things on this truck drivetrain, electrical, and body
the Only thing i see as a well designed piece is designed by someone else.. the ENGINE hehe
that helps alot
after reading all the bad things on this truck drivetrain, electrical, and body
the Only thing i see as a well designed piece is designed by someone else.. the ENGINE hehe
05-21-2008, 04:07 PM
#9
Chapter President
Hmph... 280,000 Km on the original joints on all shafts.. ???? But the 70 mph sounds like ujoints to me as well. Seems to be the resonant speed of the drive shaft and any play in the joints is amplified.
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