1st of all, i need to know why cars start having ground clearance issues, is it something to do with spring coil or is it with shocks? my reborn shocks seems ok, hardly feel any bump or anything, but ground clearance is getting lower and lower after some years, especially when riding with passengers and luggage, i need to know what is the most optimum way to get back to its original Ground clearance height, i don't want to put spacer, is replacing the spring coil will work or ..... please suggest. i can get all those original parts if required