Have some questions about how to achive better handling and stopping power using different springs, upgrading to coilovers, questions on swaybars, bushings, different rotors, pads, ect... Having any steering problems or questions about steering racks, tie rods, tie rod ends, ect... ask these questions here.
5-10mm of preload, means the spring needs to be compressed by 5-10mm once installed, to keep proper tension on the spring. This way the spring stays tight when you hit bumps.
