It will not only depend on the truck and its suspension. It will also depend on how loaded the bed of your truck will be. Also a camper shell or bed cover will add significant weight to the bed of the truck. Once the truck is loaded to go camping, that receiver can be several inches closer to the ground than it was unloaded. Also if you plan to use any helper springs or air bags, that will also factor into the equation.
SuEllyn & Brian McCabe
WBCCI #3628 -- AIR #14872 -- TAC #FL-7
2015 FC 25' FB (Lucy) with HAHA
2005 Suburban 2500 Quadrasteer (Olivia) & 2011 Silverado 3500 (Fred) with Outfitter Truck Camper (Ethel)