vibration/shudder at 70 - possible alternatives (other thanwheel balance?)

[scirocco81@vwmail.net (Eric S)]

Allyn, mine modulates JUST like yours (75mph is mine however) and I am on stock springs and shocks....sorry to kill that theory....hopefully I have some time this week to find a nice alignment shop that is willing to do a true 4 wheel with the shims this week...I will report back on change or not.

--
Eric
Northglenn, CO

79 VW Iltis
81 Scirocco S (*TDI* swap and complete restoration in holding pattern)
81 Rabbit Truck LX Diesel (Waiting for BAE Turbo Install)
83 Scirocco Wolfsburg
91 Cabriolet (2.0 Crossflow 8v swap and mechanical rebuild in progress)


--- "Allyn" <amalventano@sc.rr.com> wrote:
>> I am thinking that it could be the sway bar bushings
>> or the a-arms bushings that need to be changed
>
>did poly sway bushings and factory a-arm bushings, no change.
>
>my belief/theory is that since our cars sit low, the cvs are collapsed as
>far as they can be, to the point of hitting internally. this knocks the
>tranny back and forth, taking the car with it, and just happens to hit its
>resonance at 70. the resonance isnt perfect, slightly out of tune, causing
>the modulation...
>
>does yours modulate like i described? or is it constant?
>Al
>
>
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