You don't need a new steering stabilizer.
Most likely, what happened is you did not loosen every control arm and trackbar bolt during the lift install and wait to retorque the bolts until after the full weight of the vehicle was on the axles at the new ride height.
If this is the case, then the relatively soft rubber stock control arm bushings are twisted/pre-loaded/binding to the wrong ride height, and this results in a jittery ride and premature bushing failure.
The fix is simple. With the full weight of the vehicle on the ground, loosen all control arm and trackbar bolts, vigorously rock the vehicle side to side and forward and back to unbind the bushings in the brackets, then retorque everything to spec.
If you did do everything correctly with loosening and retorquing and are still having issues, then read my Diagnosing Death Wobble write-up thread and watch the 2 YouTube Diagnosis videos.
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