See Figure 1
The CV (Constant Velocity) boots should should be checked for damage every 15,000 miles (24,000 km) and anytime the vehicle is raised for service. These boots keep water, grime, dirt and other damaging matter from entering the CV joints. Any of these can cause early CV joint failure which can be expensive to repair. Heavy grease thrown around the inside of the front wheel(s) and on the brake caliper/drum can be an indication of a torn boot. Thoroughly check the boots for missing clamps and tears. If the boot is damaged, it should be replaced immediately. Please refer to Drive Train for procedures.