Mine's missing the zerks on the struts for the ball joints. I think I prefer adding them vs disassembling the A arms.They had a few years in the mid 2000's (2005-2007/8/9/10??? :dunno, which did not have zerks on the a-arm bushings. The newer 2010+ models have them on all 4 corners. When we got the 2005 Sportsman 400 I searched high and low and all I found was the 3 already mentioned. If I ever have to replace bushings I plan to add zerks to our 2005 Sportsman 400!