2000 Tioga, Ford chassis, tongue weight question....

Bobbo wrote:
Not always. Factors on the RV itself may impact those ratings. My Winnebago has a 2" receiver and a 5000 pound pull weight, but Winnebago has put a 350 pound tongue weight limit because of the frame extensions.

Correct. Frame extensions installed by a coachbuilder get a a vote irrespective of what the hitch (which is often of third party manufacture) is rated for. Always check the RV manufacturer's specs for your particular RV.