2wd vs 4wd metal?

didnt know how to word it in the search...how much more clearance do you get with the 4wd bed vs the 2wd bed? also fenders up front but im more interested as to how much more you get in the rear right now, thnx

i want too say about 2 1/2 inches not positive i know on a nissan hardbody the fenders are about 5 or so inces out and stantard abt 2.5

so it's a rough gain of 2-2.5" give or take