Try unloading a 150 pound 13hp honda GX 4000 psi, 4gpm pressure washer from the back of your 07 f150 FX4 with the towing/hauling suspension...
I almost dropped it today.
Although I do have a trailer, not sure why I didn't use it...oh yeah...because the 18's and 33 inch tires on my truck make the trailer with 12" tires look really silly.
Oh well, I think I'm selling a slightly used 5x8 landscape trailer.