Yes, the ICON raptor RXT springs are designed to work in conjunction with stock or aftermarket shocks. In order to take advantage of the entire systems benefits the ICON RXT bump stop kit, RXT shock kit and RXT leaf springs kit are required. The factory OEM shock can be used but the add a travel design in to the ICON RXT leaf spring system will not be available and a factory bump stop spacer will be required to prevent damage. Contact ICON tech-support for more details (951) 689-ICON.