yeah use an impact on the axle nut if you have one. otherwise a breaker bar with a pipe. They will be tight. 132 ft/lbs IIRC

 

The axle nut is installed with 180 ft. pd. of torque. If you dont have a impact gun try and have someone step on the brake and use a breaker bar to loosen it before you take everything apart. Good Luck.

 

or jam a big screw driver into the rotor, through the open back of the caliper. a lining bar will work too.