So i think i almost have my mother talked into buying a localy owned 80 with the lockers. My truck, however doesn't have the lockers. Knowing the kind hearted woman my mom is, i know she would never use the lockers and would be much more happy if the lockers were in my truck. So......question is, just how hard would it be to take my axles (w/o lockers) and exchange them from my mom's 80 (w/ lockers)?