So I have been thinking about getting a 4.10 rear end for my 2.3 2wd just to give her some more grunt then I had an idea if I put a transfer case in my 2wd when put in 4/2 low wouldnt it act like i had a lower rear end. Then I had another thought would it be possible to have a t case that would overdrive in high and underdrive in low so that I could overdrive normally and get Better mpg but when i needed to pull something put it in 2 low is any of this possible thanks in advance