DIY: How to set preload on your coilovers?
-Measure on the eye to eye length of the shock & determine how much higher or lower you want it.
-Measure the exposed threads above the preload nut (record this measurement)
-Lift front of vehicle until no weight is on the coilovers (or remove them from the vehicle)
-Thread the preload nut up or down to achieve desired ride height
-Using a spring compressor with the shocks off the vehicle will make this much easier
-Check that you have not exceeded the max compressed length of the spring
– Adding too much preload can cause the spring to go solid before the bump stops bottom out