Jack the car up in the air to take the load of the shock assembly. Put a jack stand under there, then try to lower. It's pretty hard to turn coilover sleeves with the cars weight on them. Try some lubrication too.
Did you find out the problem?So, I just installed my Megan racing coilovers on my NA. I'm adjusting the ride height now, but the fronts won't let me go any lower. I have thread still to go lower, but it is impossible to turn the ring. Do I need to preload the spring? Or am I just weak, haha. Sorry, if this is a noob question, but I'm just having trouble and I want to get some info before I do anything wrong. Thanks.