oem suspension braking stock end links
 

i removed my flexes, adjustable end links and RB sways from a 02 car. put what i think is a NB rear sway back (this could be the problem if the na rear sway is different) on the car that i was given with stalk end links. jacked up the car today and saw the ball part has been pulled out of the end link. replaced it and as i was tightening the nut the same thing happened to a different stock end link i just picked up.

any ideas why they are braking besides oem end links suck ass.