[JRTJH]

To add to Tinner12002's calculations, your tongue weight is 1900 pounds and your truck, when hitched is at GVW (10,000 pounds). With the trailer weight of 10280, 780 pounds over GVW, the 1900 pound tongue weight is 18.4% of the trailer weight. You state the truck receiver is rated at 1900 pounds with 2.5" shank. REMEMBER, ALL HITCHES USED WITH A SLEEVE AND A 2" SHANK HAVE A REDUCED RATING.

It looks like you're over trailer GVW, at the truck GVW, probably over on receiver rating (unless you're using a 2.5" shank for your hitch head) and probably over on hitch rating. Additionally, you're 3.4% over the typical 10-15% tongue weight range.

I'd think it's time to "trim the fat" in the trailer, find those things you seldom use and remove about 750 pounds of "stuff". Then take a look at the weights. If you're still over the receiver rating and are using a 2.5 to 2" sleeve adapter in your receiver, you'd probably be a candidate for an upgraded hitch head shank.

The problem is weight carried, not GCWR rating for your truck.