Here is the kit of heads of direction for your quad 50c and 90cc. This repair kit therefore includes 2 ball joints to restore your front axle.
Mounts on :
ARCTIC CAT 50 2WD 2004 2009
ARCTIC CAT 90 2WD 2002 2009
KYMCO 50 MXer 2002 2007
KYMCO 50 Mxu Reverse 2007 2014