The knuckle is straight. The ball joint appears to be good.

O.E.M Part Number 39186-0041

Make	Model	Year	Submodel
Kawasaki	Prairie 650	2003	All
Kawasaki	Prairie 650	2002	All
Kawasaki	Prairie 700	2004	All
Kawasaki	Prairie 700	2006	All
Kawasaki	Prairie 700	2005	All
Kawasaki	Brute Force 650	2013	All
Kawasaki	Brute Force 650	2012	All
Kawasaki	Brute Force 650	2011	All
Kawasaki	Brute Force 650	2010	All
Kawasaki	Brute Force 650	2009	All
Kawasaki	Brute Force 650	2008	All
Kawasaki	Brute Force 650	2007	All
Kawasaki	Brute Force 650	2006	All
Kawasaki	Brute Force 650	2005	All