anyone know if boots cover existing rubber covers or replace existing rubber covers on tie rod/ball joints? I have the complete kit but does not specify in directions thanks

 

remove the stock rubbers and slide the poly ones in their place, they will like to pop off so once you put them on then remount the joints to the knuckles and the fit will hold them in place. be sure to add a little more grease to the joints while you have the boots off since the stockers are kinda skimpy with the grease.