LEAF SPRING SUSPENSION
Control arms are not required on leaf spring suspensions. The leaf spring is connected to the axle housing with U-bolts and to the frame by bolts in the front and by a shackle assembly in the rear. The shackle assembly allows spring movement.
In both applications, shock absorbers connect between the axle housing and the frame and absorb excess energy from the system. If the vehicle is being used to carry heavy loads or tow trailers, load-assist shock absorbers are recommended
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