What would be an outcome of worn countershaft bearings according to Technician B?

When countershaft bearings become worn, they can lead to abnormal play and misalignment between the components of the transmission. This can result in difficulty engaging certain gears, particularly reverse. Worn bearings may not maintain proper alignment, and this misalignment can cause resistance or binding when attempting to shift into reverse gear. Shifting into reverse requires the gearbox to be in a specific position, and if the bearings are not functioning correctly, it can create mechanical challenges in achieving that position.

The other outcomes do not accurately reflect the effects of worn countershaft bearings. For instance, shifts becoming effortless would imply optimal or improved performance, which is contrary to the challenges posed by wear. Increased fuel efficiency is typically associated with a well-tuned transmission rather than one with degraded components. Finally, reduced noise levels are not expected, as worn bearings often lead to increased noise due to the inadequate cushioning and support they provide. Therefore, the correct answer recognizes the specific issue with engaging reverse gear due to worn countershaft bearings.