What must be done after replacing rear struts on a vehicle with McPherson strut independent rear suspension?

After replacing rear struts on a vehicle with McPherson strut independent rear suspension, it is essential to check the rear alignment after installation to ensure proper vehicle handling and tire wear. Strut replacement can affect the angles of the suspension, which in turn can alter the alignment settings. If the alignment is not checked and adjusted as necessary, it can lead to uneven tire wear, compromised stability, and a decrease in overall handling performance.

Checking the rear alignment ensures that the wheels are properly positioned relative to each other and to the road, promoting optimal contact with the tires for better traction and comfort while driving. This step is crucial for maintaining vehicle safety and performance.

The other options involve components and procedures that may not necessarily be required when replacing struts. For instance, while strut bearings could still function, replacing them is not always mandatory unless there are specific signs of wear or damage present during the strut replacement process. Similarly, replacing rear springs doesn't routinely accompany strut replacement unless they are found to be damaged or worn out. Lastly, alignment correction prior to replacement is not needed, as the realignment is specifically necessary after the new struts are installed.