1971 Chevy Suburban Currie Axle Swap - Project Superburb: Iron Jock 60 Assembly
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Here you can see the front pinion bearing prior to the installation of the pinion seal. Notice the oil channel (arrow) that feeds gear oil to the front side of this bearing. When operating, oil is pumped up to the front side of this bearing by the ring gear. With this design, oil must flow through though each of the pinion support bearings to complete the lubrication circuit. View Related Article
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