I've got a 08 silverado single cab and been looking at drop kits and i want to go with 3/5 and my ? is can achieve a 3" drop up front by using a 1" drop spring and the strut relocator since it equals a 2" drop... Now on to the rear it already has 2" drop shackles with the stock block removed making a 3" drop. So by running a flipkit in the rear would i need to put the stock shackles back on??? Ive searched for days trying to find answers and couldn't so figured i'd just ask.... Thanx in advance for all info / help!