lowered car.......have problems?

i just put some Neuspeed sport springs and tokico blues shocks and my passenger side is lower that the drivers side?
whats wrong with it and when im on the highway and i reach 55-up the steering wheels shakes and shimmy. what can i do to fix it?

how much lower?
did you get an alignment?

it lowered it 1.5 in the front and 1.7 in the rear, and yes i got an alignment but he could not fix the camber.
i dont have a camber kit.

i think you answered your own question as far as the shimming goes....buy a camber kit

did you check and make sure the springs are fully seated? (for the l/r height problem)

Well I just installed neuspeed race springs, and my ride is shit too, and also my steering wheel feels very loose when I hit high speeds on the freeway....