This is a question every technician has heard after recommending the replacement of a vehicle's MacPherson struts and/or shock absorbers. This recommendation is usually based on a visual inspection of the truck, SUV or car's suspension components (in this case, struts and shocks).
Mileage: Most shock and strut manufacturers recommend a close inspection after the average vehicle has driven 50,000 miles
Naturally, the type and condition of the roads used, combined with the driving style of the main driver, will determine how long these components will perform satisfactorily.
During the inspection, the technician will look for signs of fluid leaks that would be a reason to recommend replacement. He will also look at the wear of the tires.
In brief, here is a technical explanation of struts and shocks
These components are designed to control the tires so that they remain in contact with the road as much as possible. If the vehicle's tires are allowed to bounce freely (which happens as the struts and shock absorbers wear out), they are not as effective at gripping the road, affecting steering, handling and braking. Shocks and struts are not just for ride comfort: their primary function, tire control, plays a much more important role.
A gradual deterioration of struts and shocks
Because the wear on these components is largely internal and does not show up as worn tires or brake pads, and because it is very gradual, the daily driver is the last to notice the difference. A passenger driving the vehicle for the first time may even comment on the "ride" that seems normal to the driver. However you experience it, worn struts and shocks will cause a change in tire wear and vehicle handling that should not go unnoticed.
Enjoy the benefits of replacing worn shock absorbers and struts
Replacing these worn parts will restore the vehicle's ride control and handling as demonstrated when it was new. This also means longer tire wear. New shocks and struts also help reduce potential wear and tear on other steering and suspension components of trucks, SUVs or cars.
Finally, replace your struts and shocks in pairs
Shocks and struts should always be replaced in pairs, or better yet all four, for smooth, predictable handling and control. After all, all four of them have driven the same number of kilometers on the vehicle and worked under the same conditions. Also keep in mind that every time the struts are replaced it is important to check the alignment as it may have been changed to protect your vehicle's tires and ensure maximum safety.
