According to the tractor wheel can optional differential lock and inter axle differential lock
Even if there is a bad lock, it is estimated that the possibility of climbing pits is not large, honest Road, and the life of the car is good, and refitting the original car design is a challenge, the designer in the design of this did not consider it? Really loaded, I guess there will be a series of problems come out. Pure hand touch adopted.
I understand your needs, but I suggest you all heavy car, soft road do not go, ghosts know there is no pit below.
