Rear Pro Coil shock for 78-96 GM B-bodies. Single adjustable and includes all mounting hardware, brackets, two shocks and springs with a spring rate of 200. QA1 offers bolt-in Rear Coil-Over Conversion Kits for 1978-1996 GM B-Bodies. These kits include specially designed USA made mounting brackets and single or double adjustable aluminum shocks, springs and all necessary hardware.