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Land Rover Rear Three Quarter

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There are two ring-and-pinion configurations as regards pinion height versus ring gear centerline. An example of the first configuration is this old Land Rover rear axle, which has the pinion at the centerline of the ring gear and axlehousing. This is known as a spiral bevel design. A spiral bevel ring-and-pinion is noisier but runs cooler and has less parasitic loss due to friction between the pinion and ring gear teeth.