QA1 Leaf Spring Lowering Kit RDK52621Product Overview Looking to dial in the perfect stance on your NBS truck? QA1s rear drop kit gives you a clean, consistent 2"4" drop while maintaining ride quality and minimizing hassle. Designed for 2WD 19992006 Silverado 1500 short and long bed models, this system includes shackles, hangers, and QA1 double adjustable shocks. CHOOSE YOUR IDEAL DROP Whether youre leveling your truck or going for a more aggressive stance, this kit gives you the