The easy way to adjust your ride height on QA1 coil-over shocks and struts. This spanner wrench set is needed to adjust the QA1 coil-over shocks spring seat and jam ring. This kit also includes a set of thrust washers and needle roller bearings to provide for bind-free coil spring rotation and easy on-the-vehicle ride height adjustments. This kit includes enough parts to do two spring ends. Dimensions: The thrust bearings and washers are 2.500" i.d. x 3.225" o.d.