@@rickyshaw2443pre load means when the car is up in the air the spring on the suspension is not allowed to be loose . Pre load means the spring is pre loaded and under pressure when the car is up in the air
I think this is an issue with the spring. I am having similar issue with my coilovers except it also makes a clanking noise. I changed the shock and the top mount and it didn't effect the noise at all.
Theres this other plastic ring that you put between your helper and the main spring, the same thing is happening to me, i forgot to put it on the left, and its only the left side coz it doesnt have, my problem is dont know if i can but that thing alone