Viking double adjustable shocks are a waste of money at $400 bucks. When properly adjusted they don't perform any better than stock worn original shocks on the rear . And a double adjustable is not needed for the front of these cars . & they don't eliminate the need for rear air bags as promised . Nor did they come with bolts needed for proper installation. Again people be careful of the parts you purchase . Some of these vendors are just out to sell parts and don't race for real or even drive turbo buicks.