Ensure your safety - and enjoy a smooth ride - by regularly checking and replacing your Eagle shocks. The general rule of thumb is to check your shocks every 12,000 miles or so, which is about the same as your brakes. Some of the signs of a worn-out shock system: Does the car roll or sway when you turn? Does the front end dive when you brake, or the read end squat when you accelerate? Sometimes you might feel bouncing or sliding on winding roads, or feel thumps when you strike bumps. Look for signs of oil seepage where your shock absorbers are located. Test the shocks by bouncing the car up and down at its bumper. The car should stop bouncing as soon as you move your hand away from the bumper. If you see those signs of wear and tear, then replace the shocks immediately. After all, worn-out and corroded shocks can increase braking distances - which is a major safety hazard, particularly in rainy conditions. Tired shocks will prematurely wear out your tires and increase the odds of aquaplaning in the rain. If neglected, your shocks will then have a detrimental effect on your suspension parts, such as the ball joints, steering linkage, and springs.