MerCruiser TRS 255 1973-1974 Complete Lower Gear Case Assembly Left Hand Rotation. Part numbers 5321A 5, 5321A5, 1646 5321A 5, 1646 5321A5. Good working condition from freshwater use. Gears turn smooth, oil clean when drained & pressure tested before separating from upper gear case. Gear case has surface scratches & the paint is faded with some blistering. This is to be expected since this item is 40 plus years old.

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