1999-2007 Silverado Sierra NBS Front Air Ride Bag Kit Upper and Lower Cups September 24, 2023 admin PRODUCT BRAND: Crown Suspension – Made in The USA. WHAT YOU GET: 2 – Upper Cup Bag Mounts 3″ 2 – Lower Cup Bag Mounts 2″. To Be Used With Any 2600 Bags (Available In Our Store). Coils spring trucks only. Ask us how to get a discount on this kit.