Those that have installed lowering springs on your mustang did you change out the rear axle bump stop??? I cut mine but don't know if its worth buying a new one???
http://store.summitracing.com/default.asp?target=product.asp&p=2628&searchtype=ecat
http://store.summitracing.com/default.asp?target=product.asp&p=2628&searchtype=ecat