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All shock absorbers work much in the same way and manner. It’s only the markings on the outside and that their internal valves and chambers vary. When your auto’s wheel hits a bump and moves upwards, so does the bottom tube of the shock (compression and the compressing factors). Fluids in the lower chambers are displaced via holes and valves into the upper chamber and chambers and reservoir. When the spring itself rebounds fluid is forced back through the holes and valves to the lower chamber. If the shocks are too hard, then the springs will not by any means properly absorb road shocks well. Hence your vehicle ‘ be it truck, bus or car will be much too harsh and even brutal
Checking your car’s suspension system generally involves a few relatively simple and straightforward procedures. A major emphasis of fire departments is prevention rather than fighting fires. Fighting fires – in this case suspension damage and loss of reaction time in emergency handling situations – is a needless and dangerous practice which can easily be prevented through care, attention to detail with the application of routine auto safety procedures and inspections.
Another important difference between the front and rear suspension is that in rear wheel drive cars and vehicles the torque – that is the twisting force that ultimately powers the car and grants speed – is transferred to the roadway by the rear wheels. Thus the rear suspension must be strong and hardy enough to resist this torque while providing traction. Two basic types of suspension are found on most rear wheel drive cars. They are – live axle suspension which has an axle housing which runs down the width of the car and bounces up and down when either wheel hits a bump or pothole. The final variety is independent wheel suspension allowing each wheel to respond to the road separately and individually. If you do suspect a problem with one of your automobile’s springs then have a specialist check out the suspension. Most auto dealers – The front wheels must steer as well as respond to the road surfaces ( and provide traction on modern front drive cars). Most trucks by and large – other than “toy trucks” , still use more rugged rear suspension with a solid under the hump drive shaft – turning power and torque to the rear wheels. Front wheel drive ( which is more complex overall) seems to be in the domain of standard passenger cars – or can refer you to one. On top of that consider one of the big box auto stores or even big-box retail outlets. Automotive spring work requires special tools and equipment not generally found at your neighborhood back yard garage mechanic and his or her auto repair shop. It’s the springs in your front end that take the load – not the shock absorbers, It seems now in 2010 often to confuse consumers (who may now know some of the automotive terms and names of parts) that shocks are often called in service writer’s estimates as “struts”. Regardless it’s the shock themselves, while being virtually ignored, that takes the lions share of the jolts, bumps and hazards on the road that your vehicle, your suspension and your tires take. Its Rock and Roll out there on the highways, streets and roads.
When the front wheels must steer as well as move “up and down”, the rear wheels should remain straight and even flush at all times. Instead of the ball joints used in the front suspension, the rear wheels are attached to the axles in a way that keeps them constantly aligned, regardless of their up and down movements and motion as well as road transmitted vibration and vibrations. Original equipment shocks seldom last more than 25,000 miles (40,000 km). Worn shocks may be replaced individually, that is one by one, and not necessarily in pairs. Since shock absorbers are normally replaced several times during an automobile’s lifetime , most types are designed for easy installation by an average do-it-yourself-er.
In the end you should be able to drive down the road in your automobile in comfort, safety as if you had a fish bowl balanced on your lap. Drive safely.