Placing a concentrated load ahead of the rear axle can lead to bending of the frame and steering difficulties due to the altered weight distribution of the vehicle. When a heavy load is positioned too far forward, it can create excessive stress on the frame, particularly at the points where the load is concentrated. This stress can lead to structural issues, such as bending or warping of the frame over time, compromising the integrity of the vehicle.
Additionally, the shift in weight affects the vehicle's handling characteristics. With more weight at the front, steering response may become less predictable, making it difficult to control the vehicle. The front tires are subjected to more weight, potentially causing uneven tire wear, decreased traction, and increased difficulty in making turns. This combination of factors can create safety concerns for drivers, as their ability to maneuver effectively can be severely impaired.
The other options do not apply to the situation. Improved steering control and better fuel efficiency are unlikely outcomes of an unbalanced load, while equal weight distribution is not achievable under these conditions.