Coil springs are one of the hardest working suspension components in a vehicle, supporting a vehicle’s weight, 24-hours a day. This TJM XGS spring coil, heavy-duty rear pair suits Toyota Prado 90 Series with constant loads. TJM XGS progressive coils provide a smooth and comfortable ride with a low initial spring rate that progresses to a higher spring rate. Progressive coils improve stability, support low load bearing accessory (LBA) weight and enhance load carrying ability when your vehicle is loaded. Designed to increase the spring rate as the load increases, there’s less tendency to bottom out, which goes a long way towards making your ride more comfort. Perfect for vehicles that only carry weight from time to time. Upgrading your vehicle’s factory fitted springs will improve performance for challenging off-road conditions and when adding load bearing accessories.