max towing

Sorry, this is probably a dumb question but I can't seem to find a solid answer anywhere. I have a 2021 F-150 Lariat with the max tow package. I'm getting ready to buy a boat and it's dry weight + trailer is over 5000 pounds. I assume I need to upgrade my Class IV hitch? From what I can see...

We sold our 2020 Lariat and bought this 2021 Powerboost and it did everything we expected and more. The truck drove very comfortably and quite (low RPM at hwy speeds). We used all the features that this model had that was not present on the 2020 Lariat. The longer range, the 4x4, the generator...