well, it all depends on the trailer you want to pull. You want to maintain the trailer on the level when empty and loaded up. you need to determine the height of the hitch at that point and get the drop or lift receiver to match. There are also adjustable hitch receivers available.I don't know if I topic was started for this but I didn't see one.. I'm new to the whole 4X4 towing thing. does anyone know what drop for the hitch to use?