Editing Suspension: designs, shapes, sizes (section)
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===Semi-independent rear suspension=== ====Swing axle==== =====Conventional swing axle===== The most familiar form of this suspension was found in the early Corvair and early Volkswagen. The differential unit was solidly mounted to the chassis and each wheel assembly pivoted at a universal joint near the differential. Major disadvantages were poor camber control and the possibility of "jacking," a situation where the outside wheel "tucks under," often resulting in the overturning of the vehicle. An alternate design eliminates one universal joint, with both wheels pivoting about the remaining universal joint. ====Low-pivot swing axle==== This modification of the swing axle described above provided a single pivot point for both wheels located below the differential, with provision for axial motion of the axles to prevent binding. ====De-Dion==== This design combines the excellent camber control of the beam axle, with the fully independent rear suspension's reduction of unsprung weight and elimination of driveshaft torque. The differential unit is solidly connected to the chassis and two universal joints and a splined connector are used on each of the two axles. A single assembly, usually consisting of a large diameter tube bent to avoid interference with the differential unit, connects the wheel uprights.
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