i have an opertunity to trade a used AOD that i have for a lockRight with about 60miles on it. the person swaped to a ford 9inch so of course he couldnt use it. I do light to mod wheeling , the bronco has 35's and brand new 4.88's. would installing a used locker like this pose a problem. I dont want the locker to let go and destroy the gears i just had installed or could that even happen. I dont know what these lockers do when the fail. I appreciate your advice.