Once both the upper and lower ball joints are secure, torque them to 50 lb-ft (upper) and 80 lb-ft (lower). If you need to align the hole to insert the cotter pin, TIGHTEN the nut. Never loosen it. If you havent already, now is the time to tighten the cross-shaft bolts on the upper and lower control arms. They should be 50 lb-ft.