I have Fox 2.5 shocks that fit Yukon, Tahoe, Sierra, and Silverado from models 2007-2018. Sierra, Silverado, Yukon, and Tahoe from 2007-2020. The shocks were recently checked and are in excellent condition and clean. The shocks have adjustable stiffness and softness, allowing you to control the shock's extension and compression. Also available are KSP American upper control arms, used for approximately 500 km, never used off-road, like new. Selling as a complete set, includes spacers and double drop. The shocks are serviced and ready for use.