Experience towing w/ 2WD F250, 2500 or other 3/4 ton

I didn't directly address your question. I used to pull with a 2wd gas 3/4 ton and pretty much only had traction issues when empty on wet grass. Before that I pulled a 4,000lb with a big Chrysler and never got it stuck.

Now I am pulling a 10,000lb trailer with a 4wd and do often get into grass and find the 4wd very helpful but partly because I want to avoid damaging peoples lawn so I use 4wd as a preventative measure. I am sure that it is needed sometimes but don't know how many.