two to three hours Click to see full answer. Also, is it hard to replace front struts? Strut Replacement And worn struts are dangerous because they increase your stopping distance by almost 10 ft. But these days you can buy a complete strut assembly that eliminates the strut/spring/mount disassembly process. These assemblies allow you to replace both of your front struts yourself in less than two hours.One may also ask, how much does it cost to replace struts on a car? On average, expect to pay somewhere between $450 and $900 to replace a pair of struts. An individual strut assembly will cost about $150 to $300 so you’re looking at around $300 to $600 for parts alone. Labor alone will set you back about $150 to $300 for the pair. Similarly, what are the symptoms of bad struts? Symptoms of bad shocks or struts include: Badly cupped tires and/or noticeable tire shaking, wheel shimmy or vibration after hitting a bump. Suspension bottoming on rough roads or when backing out of a driveway. A bouncy ride. Body sway or rocking when cornering or driving in strong crosswinds. What noise does a bad strut make?When compressed, the knocking sound that is often heard is caused by the strut “bottoming out” or metal-to-metal contact. If you notice a knocking or clunking sound coming from an area near the front or rear tires, it’s most likely due to worn out or broken struts.