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The front eye of each leaf spring is secured to the frame; the rear eye is attached by a shackle that pivots to allow the spring to lengthen as it flexes. The two ends of a leaf spring usually are formed into round eyes or eyelets, through which a fastener connects each end of the spring to the vehicle frame or body .
Some methods of lifting are good for the rear, but not for the front, such as lifting blocks. Lifting the rear with blocks is a common way to achieve the desired height. This is done by installing a block, of the desired height of lift, in between the leaf spring and leaf spring perch and installing longer U-bolts. It is a bad method for the ...
This is an especially severe problem when a swing axle is used in a rear-engine design, because of the greater side-g forces on the rear wheels from the mass of the engine. Camber changes during deceleration can increase the severity of lift-off oversteer. 1964 Corvair swing-axle rear suspension with transverse leaf spring
The AC Cobra is an example of a transverse, multi-leaf steel spring suspension that uses the leaf spring as the upper suspension arm. Alternatively, the 1963 Corvette's rear suspension is an example where the transverse leaf spring is used only as a ride spring. In both examples, the leaf spring is centrally mounted, preventing displacement of ...
Leaf springs have been around since the early Egyptians. Ancient military engineers used leaf springs in the form of bows to power their siege engines, with little success at first. The use of leaf springs in catapults was later refined and made to work years later. Springs were not only made of metal; a sturdy tree branch could be used as a ...
Vertical shackles, as on a more typical fore and aft leaf spring, would have failed to provide lateral control. Some variants used a plain pivot at one end of the axle and a near-vertical shackle at the other. The wheel hub assemblies (sometimes known as steering knuckles) carry steering arms, the ends of which are linked by a tie or track rod.