The GTWR number is from the Keystone stats. There's another thing acting on the pin weight which I had completely forgotten about. 500 lbs of emergency food in 1 and 5 gallon buckets in the forward compartment with the batteries. Forgot to remove them. Also noticed my water tank is in the rear and it was near empty. More in there would shift a bit of weight off the pin but increase the FW overall.
I will definately look at changing wheels/tires.
I can understand how people can drive around ignorant and happy. Just on feel and ride alone the rig is terrific. It's this forum that got me asking questions to verify what I really have. Thank you all for constructive comments.