Dana is heavy as hell, and if you shorten one out of a "truck" it's even heavier because heavier axle tubes Takes a LOT of HP just to turn it
Consider the "best alternative" a Ferd 9". Stronger than an 8 3/4, better parts availability, and a pumkin' you can easily swap gear ratios. In my opinion, the Ford 9 is easier to deal with, setup, etc, than a Dana