5ktq massive vibration from rear 20-40mph (solved)

[L DC]

Thanks Kurt,

That's what I thought.

-Louis


--- Kurt Deschler <desch at alum.wpi.edu> wrote:

> I was referring to the main drive shaft (prop
> shaft). It takes a lot to 
> make a half shaft vibrate. I had one on my GTI that
> was bent over 1/2" and 
> there was no vibration.
>  	-Kurt
> 
> On Mon, 8 Jan 2007, L DC wrote:
> 
> > Kurt,
> >
> > By drive-shaft you mean the 1/2 rear drive-shafts,
> and
> > not the main one running from the tranny to the
> rear
> > diff., correct?
> >
> > Reason I ask is that on the main drive shaft, I
> have
> > seen weights on, but never on 1/2 driveshafts.
> >
> > -Regards,
> >
> > -Louis
> >
> >
> >
> > --- Kurt Deschler <desch at alum.wpi.edu> wrote:
> >
> >>
> >> The vibration was due to the driveshaft balance
> >> weights rusting off and
> >> presumably further imbalance from flake rust. I
> >> found a good used
> >> replacement and the problem is gone. People in
> the
> >> rust belt need to be
> >> aware of this issue. The parking brake cables are
> >> easy to get to with the
> >> drive shaft out and can be easily changed at the
> >> same time.
> >>
> >>  	-Kurt
> >>
> >> On Mon, 2 Oct 2006, Kurt Deschler wrote:
> >>
> >>>
> >>>
> >>> I am trying to isolate the source of massive
> >> vibration from the rear of my
> >>> 5ktq. The problem is definitely dependant of
> wheel
> >> speed, not engine speed
> >>> and comes on hard and fast at 20mph. Problem
> also
> >> occurs with the rear end up
> >>> on jacks. I tried adjusting the prop shaft
> bearing
> >> and geasing the U-Joint
> >>> and neither helped. I have also ruled out the
> >> brakes. Could the rear diff be
> >>> bad? It used to weep fluid so it is possible it
> >> went dry. The vibration
> >>> reasonates the entire back of the car and is
> >> enough to rattle your teeth out.
> >>>
> >>> 	-Kurt
> >>>
> >>>
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