Car is 1997 Lincoln Mark VIII Well, my original concern was that my steering wheel didn't "return to center" after turns, etc. Took it in to my mechanic, he said the tie rods were dry so he greased them. He also said the lower driver side ball joint was bad. I purchased the Moog Thunderbird Lower control arm/ball joint(same as MarkVIII but cheaper) and he put it on yesterday. After the installation, the wheel still doesn't return to center. Also, the car pulled to the left when braking as well as the wheel was "off center" even when the car was straight. Also was getting heavy vibration. I figured it would need an alignment regardless. Took it for a 4 wheel alignment today at Big O Tires. My first concern was the "tech" that did it was finished in about 20 mins, which seemed way too fast. On the drive home I noticed that the vibration is considerably lessened but still there at 65+. The car still pulls to the left while braking as well as pulling "slightly" to the right when driving normally and the wheel still doesn't return to center. I'm not sure if the mechanic did something wrong or the guy at Big O did a [censored] job? I'm assuming the latter because of how fast he did the job. I realize I probably won't get rid of all the vibration because of the two piece driveshaft but the other issues are bugging me. So, what does everyone think? Something the mechanic did or the alignment wasn't done correctly? I've also been told if these things don't work, my rack could be bad, ouch! Sorry for the winded post, just don't want to leave anything out. Thanks.