a couple of weeks ago I changed uca's, lca's, strut tower bushings, and sway bar stablizers. Tie rod ends have no play in them so I left them. Backing out of the driveway to go get alignment, I hear and feel a pop when I cut the wheel to back out. Seems like it came from driver side front. I get the car aligned, but in two weeks, backing out of the driveway again. I hear a pop and the car is back out of alignment. With the steering wheel straight, the passenger side wheel appears to be were it should, but the driverside wheel is toe in. Could it be the teeth in my rack somehow?