Coil-Over Kit - 2.500 in ID Spring - 5 in Sleeve - Aluminum - Black / Gold Anodized - Bilstein 1-7/8 in Shocks - Kit Brand-A-1 PRODUCTS MPN A1-12435 . **NOTE: Truck Freight NO From the Manufacturer: Founded by Brad Creighton 1989, A-1 Racing Products is one of the longest running specialty-equipment businesses respected for its reputation in the auto racing industry. Surviving industry consolidation, A-1 Racing Products is a modern company with old school racing values. The company provides a large variety of the latest products in the specialty-equipment industry. A-1 Products offers a wide range of products in a diverse mix of categories, from fasteners and fittings to suspension kits and components.