Shocks control the up and down motion of the spring by limiting its range and speed of movement. Worn or failed shocks will cause terrible ride comfort and poor handling characteristics.
It is best practice to replace the shocks on both sides of the vehicle when the time comes. The general lifespan is about the same per side, and often times a shock that you may think is still serviceable is actually just as bad as its counterpart.
OE Reference: 33521091421
- 33521091421, 170822
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