See Figures 1 and 2
The MPV and 1998 B Series Pick-up 4-wheel drive models use an Independent Front Suspension (IFS) drive axle which utilizes Constant Velocity (CV) joint equipped axle half-shafts. All other 4-wheel drive front axles are equipped with U-joints, which do not use a rubber boot to protect the joint and retain the grease.
The CV (Constant Velocity) boots should be checked for damage each time the oil is changed and any other time the vehicle is raised for service. These boots keep water, grime, dirt and other damaging matter from entering the CV-joints. Any of these could 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.