Payload Rating vs Tongue Weight

To put it simply... If your owner's manual calls out a tongue weight limit that is lower than the hitch receiver, there is some other structural limitation in place. As mentioned above, receiver assemblies may be used on more than one model. If your specific case, there's likely concerns with the rear unibody or subframe strength. Double check your receiver is even rated for weight distribution. I suspect its not.

So... don't exceed any of the following: Stated hitch limit or payload or RAWR. Without the ability to use WD, the RAWR may become the actual tow-weight limit for your vehicle.