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Backlash in a rear axle is used to allow for a small amount of play between the gears, which is essential for accommodating thermal expansion and manufacturing tolerances. This slight separation prevents binding during operation, ensuring smooth gear engagement and reducing wear on the components. Additionally, it helps to absorb shock loads and vibrations, enhancing the overall durability and performance of the drivetrain. Proper backlash adjustment is crucial for optimal efficiency and longevity of the axle system.

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1mo ago

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