Detroits are operated by torque(your foot on the throttle). When your front axle is locked up then turning is very hard. Even with the wheels cranked the truck still wants to go straight and without power steering its impossible to turn your wheels. I wouldnt wheel without a manually controlled locker in the front. It is awesome to approach an obstacle turn on your locker go over it and then turn it off. Also on hill climbs if you have no control over a front locker your rig can loose traction and drift side to side(leading to a rollover). ARBs are expensive but worth the money in my opinion.
