Q: Why does a mild drop need adjustable camber arms?

Even a small drop adds negative camber to the rear, and left uncorrected that eats the inside edge of your rear tires. The adjustable rear camber arms let your shop bring the rear alignment back into a tire-friendly range, protecting tread life while keeping the handling crisp. It is the difference between a drop that looks good and wears your tires out, and one that looks good and preserves them. That is why the arms are in the box.