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Pinion And Yoke

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As the engine’s rotating motion comes down the driveshaft, it attaches to the pinion gear via a yoke or flange. The yoke or flange has internal splines that match up with the pinion’s splines. The pinion is located in the axlehousing by two or three bearings depending on the design. The yoke or flange has a smooth sealing surface that seals in the gear oil.

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