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  • Leaf Spring Force and Pressure Measurement
    The I-Scan (R) pressure measurement system is an extremely verstaile tool for leaf spring applications. Because of the sensor's unique, thin design (> 0.1mm thick), measurements can be made quickly between two or more mating leaf springs and all at the same time.
  • Leaf and Coil Spring Testing
    The debate over which is better between leaf springs and coil springs has a long history. Coil springs have been around for nearly a hundred years, yet the leaf spring's history dates back well over a thousand, so both have long proven their individual merits, but which is better will always
  • 2000 GMC Suburban
    to straighten the entire frame after an accident. For a better ride, GM switched to coil springs in the rear suspension instead of leaf springs. Because the Suburban seems to have become a family vehicle, this design should be more comfortable and ride more smoothly than the leaf spring it replaces
  • Quieting Impact and Vibration (.pdf)
    Spring technology for dampening is relatively old. Stagecoaches had leaf springs, early trains had large, crude, coil-spring buffers (to absorb shocks when cars bumped together) and early automobiles made use of simple springs for dampening as well. However, these early springs were roughly
  • Clutch/brake chops blade power
    , with a pulley attached by six leaf springs, matches rotor rpm in about 0.3 sec. The pulley then runs drive belts that turn the blades. Cutting electrical power to the coil lets the leaf springs pull back the armature from the rotor and into contact with a stationary brake shroud affixed to the clutch
  • 2002 Lincoln Blackwood
    , and a stabilizer bar. In back, a five-link, load-leveling leaf and air-spring hybrid setup smooths the ride with its acceleration-sensitive shocks and stabilizer bar. The single leaf spring's parabolic cross section helps it handle the weight of an unloaded vehicle on the rear axle. As passengers and cargo
  • 2002 Mercury Mountaineer
    , that soaks up more lateral forces than the previous solid-axle leaf-spring configuration, according to Mercury engineers. It also increases longitudinal-force compliance, improving ride by isolating and reducing forces transmitted through the frame. Up front, SLA with coil-over-shock replaces torsion bars
  • 2008 Ford F-350 Super Duty
    a hydroformed front-end cage that attaches to a rear C-channel frame. Rear leaf springs are 8-in longer than previous models for more torsional stiffness. We put our tester through its paces by loading an old 3,400-lb Honda onto a trailer and towing it 50 miles to a repair garage. What wowed us most
  • 2001 Mercury Villager Sport
    , leaf springs, and a beam axle. To test the suspension, I hurried
  • Squeaks happen: A little grease might do the trick
    Automotive lubricants can often quiet noisy components easily and economically. DaimlerChrysler uses extremely viscous damping grease to quiet leaf-spring squeaks. Silicone greases are often used to eliminate noise in push-pull cable applications. Ford, GM, and DaimlerChrysler, for example, all use

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