99 HSE 150K with off and on death wobbles. Yes, we all know it is a comb. of many things + a GOOD steering damper, but one thing not mentioned in most threads is DEAD STRAIGHT FRONT END ALIGNMENT/ NO TOE IN or OUT & proper tire pressure. Not what the specs recommend but seems that any toe in or out sets the stage for wobbles. I did ALL recommended things but this, and bingo! Nothing like hitting a bridge expansion joint going 70MPH with grace now!!! I did this at 110K and perfect since.