VariStrut's short coil-over conversion is a bolt-in suspension-tuning solution for 1979-2004 Mustangs. Struts are 2" shorter than stock and will lower the car 2-3 inches. Use with tubular K-member and large diameter tires for drag racing. They feature double-adjustable QuickSet 2 valving to let you quickly adjust the strut’s rate of compression and extension independently, with the ability of adjusting spring preload and easily changing spring rates when tuning the suspension. Coil-over kit includes springs, upper and lower spring seats, and spanner wrench.