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The chassis was an all-new design (with all trucks receiving a leaf-spring rear suspension); K-Series trucks moved to all-wheel drive (shift-on-the-fly 4×4 was introduced for 1981). Alongside the introduction of the four-door crew cab, the third generation C/K marked the introduction of a dual rear-wheel pickup truck ("Big Dooley").
On 1 ⁄ 2-ton and 3 ⁄ 4-ton trucks, Chevrolet equipped a live rear axle with two coil-sprung trailing arms; along with auxiliary rear leaf springs, a rear leaf-spring suspension was an option. [6] GMC pickup trucks of the same payload series offered rear leaf springs as standard, with rear coil springs as optional equipment (the opposite of ...
The spring rate or spring constant of a spring is the change in the force it exerts, divided by the change in deflection of the spring. Vehicles that carry heavy loads, will often have heavier springs to compensate for the additional weight that would otherwise collapse a vehicle to the bottom of its travel (stroke).
Originally called a laminated or carriage spring, and sometimes referred to as a semi-elliptical spring, elliptical spring, or cart spring, it is one of the oldest forms of vehicle suspension. A leaf spring is one or more narrow, arc-shaped, thin plates that are attached to the axle and chassis in a way that allows the leaf spring to flex ...
A multi-leaf spring consists of a series of flat plates, usually of semi-elliptical shape. The flat plates are called leaves of the spring. The leaf at the top has maximum length. The length gradually decreases from the top leaf to the bottom leaf. The longest leaf at the top is called master leaf. It is bent at both ends to form the spring eyes.
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The new suspension, made up of independent double wishbone with coil-spring setup at the front and a rear suspension made up of over slung leaf-springs installed above a special long span rear axle, makes for a comfortable driving experience. [32] The D-Max continues to be offered in all three body styles: Single Cab, Space Cab, and Crew Cab.
The axle receives its vertical and transverse support from a transverse leaf spring (leaf springs were often used for support in more than one direction), and its longitudinal support from fore-aft links sometimes called "radius rods" which are attached (via pivots) to the ends of the axle at their forward end and to the sides of the chassis ...