Rear-wheel drive shafts
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The propeller shaft transfers the drive from the transmission to the final drive. It is normally of a hollow, tubular construction.
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Universal joints
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The most common type of universal joint fitted to propeller shafts is known as a Hookes joint or a cross and roller joint.
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Rear-wheel final drives
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In a conventional rear wheel drive vehicle, a crownwheel and pinion transfers the drive through ninety degrees and provides a final gear reduction to the driving road wheels.
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Salisbury axles
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In Salisbury axles the carrier is integral with the axle housing and a removable cover gives access to the final drive components.
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Rear-wheel drive differentials
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The differential gears are bevel gears which are mounted at right angles to each other inside the differential case.
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Limited slip differentials
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Limited slip differentials allow differential action under normal driving conditions but reduce or prevent differential action when conditions are not normal so that a wheel cannot spin.
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