Thanks QSilver,

Good advice as always. Unless I take the car in to have new tires mounted or check the balance, I always switch them out myself from winter to summer. But I will try to remember this cuz I can easily see how this could happen. Thanks again for all your sound advice.

I just got the steering knuckle for the 4.4 and waiting for a weekend to put that in. It has about 125K miles and the 4.6 has about 106K. For now things are good so hoping to have a long major problem free run.