not sure what your question is. you do not have a tow package installed but you want a hitch. what will it slide into? do you have a step bumper andd want to install a ball to tow? if so most common is the 2" ball but you will need to see the rating of the trailer and the the bumper. you need to provide more information. what type of trailer do you wish to tow? how often do you plan to tow? how far are you planning to tow? all this will net you the correct answers for what to get reciever/hitch/tranny cooler/oil cooler/ eclectric brak controler or ball size................"more input" as number 5 would say.....mike