This premium front coil-over shock assembly is designed to replace the stock suspension on select Toyota 4Runner and FJ Cruiser models with improved ride quality, suspension control, and adjustable ride height. Built around advanced ZoneControl CR damping technology, the shock delivers adaptive multi-stage compression and rebound behavior to provide a balanced on-road comfort and strong off-road performance. The external remote reservoir increases oil capacity and enhances cooling — helping the assembly maintain consistent damping under sustained use. The threaded spring seat makes it possible to fine-tune the ride height to match tire size and lift goals, while durable construction and precision valving ensure longevity in diverse environments. This coil-over is ideal for enthusiasts seeking a reliable suspension upgrade that improves articulation, control, and clearance without sacrificing daily drivability. ✔ ZoneControl CR position-sensitive damping✔ Remote reservoir for increased fluid capacity and cooling✔ Adjustable ride height with threaded spring seat✔ Designed for balanced performance on- and off-road✔ Durable aerospace-quality components