I've got a '94 Z28 and when looking at the back end of the car, the right side is about an inch and a half lower than the left side. So I talked to a few people and they said that its because the coil on the right side must be bad...So I ordered new springs, front and rear. 1.3" drop all around. Eibach high performance springs. Hoping it would fix the unlevelness of the back-end. I put them in today and when I finished, pulled the car on a flat surface, the car was 1.3' lower, but the right side was still lower than the left.....Does anyone have any idea why that would be/how I can fix that???

Thanks.