Applications for1997-2005 for Buick Century All Models Except Ones w/ 18 Wheels 1997-2004 for Buick Regal All Models Except Ones w/ 18 Wheels 1997-2003 for Pontiac Grand Prix All Models Except Ones w/ 18 Wheels SpecificationsQuantity: 2 pieces rearSpring rate Rear: 10 kg/mm (556 lbs/in)Adjustable damper: NoAdjustable height: YesWarranty:1 year warrantyFeature* Adjustable ride height* Adjustable pre-load spring tension* Pillow ball top mount -- this design helps combat noise while tuning. It also improves the steering feel and response* Most components are made from 6063 aluminum with T6 for increased hardness -- the advantages include excellent strength, and aluminum helps keep the weight down.* Hi Tensile performance spring - Under 600,000 times continuously test, the spring distortion is less than 0.04%. Plus, the special surface treatment is to improve the durability and performance.* All inserts come with fitted rubber boots to protect the damper and keep clean.* A fast and affo Discounted at only: US$ 189 
