lubing your suspension components is as crucial to suspension as oil is to the motor. lube parts at every oil change. using a grease gun, blow grease into the boot until the old black grease is overflowing and you can see new red or whatever color the new grease is. im a mechanic and i see worn suspension parts all day long because the "quick lube" places dont do their job so people are riding around with suspension rubbing metal to metal. think of your tie rods and ball joints and knees and elbows. ball and socket-the idea is very similar to your own body.