tow package..?
Probably bolted and not welded. Also, see if you can tell on the hitch if it's a Class I, II, or III design - that will dictate what your hitch is designed to handle. Also, tow package means transmission cooler - look around the radiator for an additional cooling unit and follow the lines to see if they go to the tranny. If you are towing - DON'T use overdrive