If your angle is wrong, two
tires may enter the ditch at the same
time, which could cause you to get
stuck. Drive carefully.
Direct approaches could result in hitting the bumper or underguard against edge of the ditch. The angled approach increases clearance. The angled approach also forces tires into the ditch one by one, reducing the impact to the body. It is important at this time that at least three of the tires maintain traction. Be sure to use full-time 4WD with center differential activated when driving in these conditions.
Slowly enter one tire at a time into the ditch/gap. Then, accelerate a little until the tire starts to pass the lip and decelerate right after the tire clears the ditch. Repeat this process for all four tires. On a slippery surface, increase or decrease speed as needed.
When the depth or the angle is too great, adjustments could be made by placing a rock or other object where the tires hit.
Crossing a ditch straight will cause both front wheels to fall into the depression simultaneously and for the front suspension to compress. This can cause the front of the vehicle to make contact with the ground, or reduce traction to the point where you might become stuck.
To negotiate a ditch in a more reliable manner, cross at an angle, allowing only one wheel to enter the ditch at a time. This provides the greatest chance of success by maintaining the best possible traction using three out of the four wheels. Ensure all the traction aids at your disposal are engaged (such as traction control and differential lock). Tackle the ditch at a slow speed, but have sufficient momentum to drive the vehicle through. If you have the luxury of adjustable suspension, ensure the highest setting is selected to prevent any contact with the ground. Be prepared to increase the throttle slightly if wheels start to spin.