bad shock affecting alignment?

[1slowS13]

okay, im guessing its kind-of obvious.

i got my car aligned with about -2 degrees of camber all around, everything else within spec.

took my car home, jacked up the front, and changed my rack and pinion.

so two days later, i come to get it aligned again, the front is perfect, but the driver side rear is toeing in at .53 degrees with the camber at -2.5

i also noticed while it was on the lift, the car was lopsided, with the driver side rear being lower.

while adjusting the rear toe arms, the most it would go is .53, if you keep turning, itll jump back to .58

and opinions?