if your truck doesn't have the factory tow package, you'll need more than just a receiver.
you'll need a 7 pin connector installed, wiring for a brake controller installed and then a brake controller installed to the wiring. you'll need these to be legal to tow the trailer on the road/highway.
a trans cooler is also part of a factory tow package.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC