2001 - 2005 Lexus GS430. 1998 - 2000 Lexus GS400. 2001 - 2005 Lexus IS300. 1998 - 2005 Lexus GS300. By changing the length of the traction rod you change the position and pitch of which the suspension rotates upon and you change the amount of "Anti-Squat" of the rear.