To be fair, I’m not sure, but I also installed a 2" suspension lift. I use one of those little fold out stools - they’re like 15bucks at any box store. My wife’s 5’3" and it works fine for her. I’m 5’8" and it’s a bit of a jump to get into the bed
I do know that my truck still isn’t as tall as my buddy’s stock Power Wagon though.
EDIT: The open tailgate is ~32" from the ground on a stock TRD.