last night i somehow snapped my rear end(dana 70) i thought it was strange 128,000 miles towed maybe 12 times its entire life never real heavy, and im not at to ridiculous of a power level. Anyway i need my truck so today i picked up a 2002 posi (finally) disc brake rear end. So my question is what all is reqired to do the complete brake swap correctly,i know the parking brake cable is different but what else, and what can i do in the future to this from happening again. thanks