PSR's Nissan Patrol GQ/GU Countersunk Rear Spring Retainers are a heavy-duty coil retainer, manufactured from 10mm plate, that bolts into a factory hole in the centre of the lower coil mount. Long travel shocks often allow coil springs to become un-trapped when the vehicle reaches max droop. These coil retainers secure the lower coil winding to the seat on the rear diff. The large surface area of our retainers allow for hydro bump stops to be fitted without the risk of damage to the bump pad.