Chief T - Tongue weight was calculated by the CAT scale. I have also weighed it with a tongue scale I purchased. If you want to be precise the actual tongue weight itself is 490 lbs and the wd setup makes up the difference to 600 lbs.
I should mention too that these things come from the factory tongue heavy. My out the door weight at the factory was 2908 and the tongue weight with before adding the battery was 334.
Jeep does not list a GCVWR. I would assume, right or wrong,that it would be the total of the GVWR and the tow capacity. So that would be 6500 plus 6200 = 12,700.
2020 Coachmen Clipper Cadet 17CFQ
2015 Jeep Grand Cherokee