While replacing the oil pan on my 2004 Mustang I noticed that the driver side spring is cracked! The car is my daily driver and I really don't want to have to buy one spring. I called and left a message with Eibach over the weekend explaining how displeased I was and plan to call them first thing tomorrow morning. What do you think the chances are they will ship me on one the house I need it ASAP? Has anyone else had a problem like this? The part # on the spring is 3510.201 and that is part of the Eibach Pro Kit which was on the car when I bought it 20,000 miles ago.