AFCO SINGLE Adjustable Shocks are an economical alternative to the fully double adjustable design. The SINGLE adjustment gives you the ability to adjust rebound damping control without affecting the compression damping characteristics of the shock. The rebound adjustment is the most critical in tuning a drag racing setup. This adjustment allows the tuner to dial in the separation of the chassis and keep the tires planted during the critical first 60’ down the track. Extension adjustable only
– will not affect compression. Widest range of adjustment on the market. Make a click and feel the change. 100% dyno tested.