Upgrade rubber bushings found in Utility ATV A-Arms to AB's redesigned HD Delrin bushings. This kit is designed to replace worn out rubber bushings and provides greater suspension travel and performance. Quality design and construction of every All Balls piece meets the toughest standards and conditions - from daily commuting to full-on racing all older bearing and seal designs are upgraded to the best and latest specs and designs. Fits: Yamaha YFM350X WARRIOR 1987-1988