This website has an exploded view with the part numbers you might need. http://www.courtesyparts.com/xterra-wd22-2000-2004/genuine-nissan-parts/body-electrical/288-windshield-wiper/-c-532_14_53_411.html Some times the linkage just pops out but somethimes the plastic SEAL-BALL RETAINER breaks and needs to be replaced. 1. Remove the boot around the antenna (just pull it up). 2. Remove the antenna (unscrews). 3. Remove the plastic caps at the base of the wiper (They just slide back). 4. Remove the nuts that holds the wiper arms. 5. Remove the rubber gasget at the base of the hood (clips just pop up). 6. Remove the plastic cowel at the base of the windshield. (just pops up. remove drivers side first then passengers) Some of the steps you will need to have the hood up.