The driveaxle boots are very important since it is the one that shields the constant velocity (CV) joints from dust, water and any other material that may cause damage to the boot as it translates the same to the CV joint. One should also look at the boots for tears, cracks or loose clamps, and should ensure there is no signs of leakage of the grease. If indeed there is crack/s or leaking lubricant, it is necessary to replace the system.