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. It's a matter of basic routine care, maintenance and attention on a regular and ongoing basis.
First when all four tires are properly inflated and there is someone in the driver's seat, the car, truck or SUV should sit level on the ground. Not one of the corners of your auto should sag, lower than the rear of the vehicle unless the car's suspension has been deliberately modified (such as for auto mods or trailer towing). If you do suspect a problem with one of your automobile's springs then have a specialist check out the suspension. Most auto dealers - new and used have either auto and truck suspension highly trained and certified staff - or can refer you to one. Although special tools are available at most auto parts stores, most shocks can be removed or installed with ordinary socket,box-end and open-end wrenches. 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. A popular type of independent front suspension is the MacPherson "strut" suspension. The Mac-Pherson strut arrangement allows for very little change in wheel camber ( tilt) as the auto traverses each and every bump and pothole on the Northern Alberta and BC Canadian roads - according to expert traffic management consultant M.S. Labovitch. This would never happen in Las Vegas Nevada Mr. Labovitch states with greatest authority. Although they are most compact and integrated MacPhersons may cause added expense since in many cases of auto repair and maintenance - even in dealer OEM garages extra costs and labour times are involved since the automobile's springs must be removed in order to service the shocks and struts. 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.