Guangzhou Meishun Automatic Transmission Co., Ltd.
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The component works in conjunction with the 4R75 transmission's hydraulic control system, where regulated line pressure (controlled by EPC solenoid) actuates the reverse drum, while the one-way clutch ensures torque is only transmitted in the intended direction. This assembly addresses original design shortcomings through upgraded spiral lock snap rings and staked retainers, preventing common failure points in high-torque applications.
