after susp. & body repairs, car sits 1/2" lower on driver side???

Last month i was hit on the driver side by a girl attempting to make a left hand turn in the opposite direction. Got the car back from the body shop yesterday. They replaced fender, wheel, tire, strut, a-arm and k-member. Now w/ the sportlines, the side they did the repairs on sits about 1/4-1/2" lower and bottoms out in my driveway The only think that i can think of is that they did not re-install the poly spring isolator. Anybody have any other ideas as to why not the car would not sit right??? It's back at the shop now, but if anybody has any ideas, they're appreciated... Thanks- Mike