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    1981 Dodge/Ram Truck W350 1 ton P/U 4WD 5.9L 4BL 8cyl

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    See Details

    Pinion Bearing

    Inspect/Replace

    • Inspect the pinion seal, driveshaft, and u-joints.
    • If there is a lot of lube escaping from the pinion shaft seal, the drivetrain noise could be caused by a bad pinion bearing.
    • To confirm the problem, start the engine, put the transmission in gear, and listen at the carrier. If the bearing is noisy, it is necessary to make one of those difficult judgment calls.

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