i am wantin to upgrade to a 4.5 inch lift kit here soon,i curently have a 3in life curently,and i was wondering if i could use some of the parts for it for the upgrade,but im really wanting to know what all i would have to buy with out having to buy a whole new lift kit,,,i have 3in leaf packs,3in springs,swaybar drop bracket,and shocks upgraded tierod,tracbar,etc.but if you all could tell me what else id have to upgrade to for a 4.5
-thanks

spacers for the front and shackles for the rear and readjust toe and steering wheel ,new adjustable control arms would be a plus ,at least lowers for a 4.5 lift

Lowers, SYE, brake lines shocks shackles and spacers