The Rancho RS5000 for the 1987 GMC R1500 will increase tuning ability with the ten-stage feature. This comes complete with a protective shock boot to protect the 16mm diameter piston rod and oil seal. This shock is available for your GMC R1500 1/2 Ton 2wd as well as many other stock and lifted applications alike. This shock is ideal for both on and off-road use and best of all it is at an outstanding price and backed by a Limited Lifetime Warranty.