What component works with shock mounts to maintain the proper mounting and alignment of the MRG?

The correct choice is snubbers. Snubbers are designed to manage dynamic forces and vibrations that can occur in systems like the Main Reduction Gear (MRG) associated with gas turbine engines. They help dampen any shock loads and vibrations that could impact the integrity and performance of the MRG.

In addition to working with shock mounts, which absorb shock and isolate the MRG from vibrations, snubbers provide additional support to ensure that the mounting and alignment remain optimal under various operational conditions. This is crucial for maintaining the reliability and performance of the gearbox, as misalignment can lead to accelerated wear and potential failure.

While stabilizers, braces, and isolators also play important roles in mechanical systems, their functions differ from that of snubbers. Stabilizers typically provide lateral support to prevent movement, braces may offer structural integrity and strength, and isolators primarily focus on vibration reduction but do not specifically address the dynamic forces as effectively as snubbers do in conjunction with shock mounts. Thus, snubbers are essential for maintaining proper alignment and ensuring the MRG operates efficiently within its designated parameters.