Corona & Mark II (1966-73)

Jack up lower suspension arm and check tire bottom end movement. If movement in and out exceeds 0.08" (2.032 mm) on Mark II or 0.24" (6.096 mm) on Corona, replace lower ball joint. If movement up and down exceeds 0.04" (1.016 mm) on Mark II or 0.10" (2.54 mm) on Corona, replace lower ball joint.

Disconnect upper suspension arm from steering knuckle. Turn ball stud and check for looseness in vertical and lateral directions. Replace ball joint if loose.