I installed some Swift spec r's on my 06 MR had an alignment done.Now i have a shimmy in the steering wheel,around town it's not to noticeable it's when you get on the highway you really notice it.I would say the back and fourth shimmy is 3/4 of an inch or more and it's make your hands numb if you drive for a long period of time.Everything was fine before the springs,rotors aren't warped or anything like that.

Alinement specs below and the machine used was a Hunter.

 

Loose a wheel weight? All bolts torqued right? Springs shouldn't do that.

 

Found out what was causing the vibration.When i rotated the tires front to back, the front tires hub centric ring stayed on the rotor and when i took the back wheel off the ring stayed in the rim with the wheel.So when i put the rear wheel on the front i didn't realize there where two rings up front.

So removed the wheel took out one ring and no more shimmy,go figure.