I have friend who is building up a 71 Commando and we would like to know if anyone knows if a YJ dana 30 front axles is the same or close in width as the dana 30 that comes on the 71 Commando? The axle that comes on it has drum brakes and we would like to upgrade it to disc any other suggestions? If any of you know any people that know about the Commando that could please help us out. Thanks