Having issues with nose diving during flight

Is the truck on a lift/jack stands in one of those pics? Are the upper arms upside down or is the suspension fully jacked up and almost out off droop?

Do what @Dalandser said and move to a 12" shackle over the frame. Search the magic number. Shackle angle makes a difference.

Shock tuning matters.

Here is what my truck weighs for reference pretty similar mods, I do have dual spares, high lift, shovel, tool box with fire wood and misc parts inside, no bed.

 

My OCD wants to rotate that photo for you!