Aldan American - Coil-Over Kit GM - 300371Attributes: Brand Name: Aldan American GTIN: 00602835255169 Adjustable Mounting Bracket Included: No Adjustable Valving: Yes Body Diameter (in): 2. 000 in. Bushing Color: Black Bushing Material: Polyurethane Coil Over Kit Position: Rear Coil Over Springs Included: Yes Collapsed Length (in): 12. 250 in rear Crossmember Included: No Extended Length (in): 18. 250 in rear Gas Charged: Yes Hardware Included: Yes Internal Design: Twin tube Lower Mount: