I do it 2nd gear with a 5 speed, six cylinder, with a non rubi t-case, with 3.07 axles. You just gotta get your momentum up before getting on the hill. I tried to crawl it once in 1st gear 4lo and it wasnt happening, so i tried it aagin in 2nd with speed and went right to the top. But then again, ive been up that hill 30-40 times. Practice my friend, practice, you'll get it.