Aldan American - Coil-Over Kit GM - 300339Attributes: Brand Name: Aldan American GTIN: 00792671603443 Adjustable Mounting Bracket Included: No Adjustable Valving: Yes Body Diameter: 2 Bushing Color: Black Bushing Material: Polyurethane Coil Over Kit Position: Front and rear Coil Over Springs Included: Yes Collapsed Length: 10. 750 front, 13. 200 rear Crossmember Included: No Extended Length: 14. 300 front, 18. 500 rear Gas Charged: Yes Hardware Included: Yes Internal Design: Twin tube Lower