Naake modifies the lower eyelet of the QA1 shocks to fill the mount in the lower control arms. The kit uses off-the-shelf QA1 springs (PN 10GSP450). They are 450-lb/in springs with a 2.5-inch id ground and pigtailed lower end, a 10-inch free length, and a 3.5-inch free upper end that fit the car’s factory upper spring mount perfectly. They are finished with chrome-appearing powdercoating. Note that the factory service manual calls the stock spring/shock combination a strut, though I’m not sure how accurate the term is. My understanding is that a strut not only bears the weight of the car on the spring perch, but it also replaces one (or more) of the suspension’s locating links. McPherson struts, for example, are a spring/shock combination that also acts as the upper control arm in the suspension—the spindle bolts to it. Crown Victorias still have upper and lower control arms. Semantics notwithstanding, be aware when looking up parts that these are called struts.