How many miles are on it? When you say fell out, you mean they just fell out whole and you put them back in, or they crumbled out in pieces? Play usually means its time for a new (quality SKF) bearing and cush rubbers. I believe the north America torque rating is 72.5 ft-lb with cotter pin. Thats a nut buster with a small wrench, so maybe you didn't torque enough?