Steering Wheel Shimmy, Slight vibration Options

[Mowog4]

I have a slight vibration in my steering wheel, it is very minor but noticeable. It does not get worse with speed, but I find it annoying. Every suspension piece on the front end of the car has been replaced, new struts, new wheel bearings, etc.. I thought, possibly it was a problem with flat spotting of tires, but new tires and wheels did not make a difference I see online there is a steering stabilizer, that is the only thing I haven’t changed down. Can anyone tell me what that does?
Thanks
Ed

[Superhawk996]

Need more info:

What speed range does it occur?

Is it at all dependent on road surface?

4 lug or 5 lug?

You say suspension was rebuilt, what bushings were used?

What spring rates and torsion bars?

Is the shake in the steering wheel trying to rotate (oscillate) the steering wheel. Or is it just a consistent up/down vibration without a sense of rotating the steering wheel in your hand?

[Mowog4]

See below:quote name='Superhawk996' date='Aug 15 2025, 07:50 AM' post='3219443']
Need more info:

What speed range does it occur? 30 to 120

Is it at all dependent on road surface? Mostly freeway or good back roads

4 lug or 5 lug? 5 lug, 70’s 911 suspension, Bilstein struts raised spindles, struts are revalved on all 4 corners, coil overs on all four wheels, 930 tie rods, new OEM wheel bearings, factory bushings,

You say suspension was rebuilt, what bushings were used? Factory rubber.

What spring rates and torsion bars?200lb springs, coil overs replaced torsion bars (although it did it before the coil over swap

Is the shake in the steering wheel trying to rotate (oscillate) the steering wheel. Or is it just a consistent up/down vibration without a sense of rotating the steering wheel in your hand? Just a vibration, steering wheel does not feel like it is rotating.
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