There is more that needs to be done when using drop coils then just changing the coil. A drop coil reduces suspension travel and places the suspension closer to the bump stop. Take a look at the clearance you now have to get an idea of what will happen when lowered. Also depending on your tire diameter with the bump removed which you will most likely do your tire may rub the inner fender well. This all needs to be adjusted to make everything happy. Good luck..