Product Description Set of 1" Billet Aluminum Rear Coil Spring Spacers for 60's thru 90's Rear Wheel Drive GM & Ford Cars. (see below for exact applications) SOLID BILLET ALUMINUM: Stronger & More Durable than Cast Aluminum, Poly or Plastic GOLD ANODIZED: For Superior Protection Taller Top Spring Perch for Increased Safety Kit Includes Instructions Lift Amount = 1" Part #: MP1627 Warranty: one year PROFESSIONAL INSTALLATION RECOMMENDED! APPLICATIONS: .