has anyone ever replaced one of these? somehow mine got messed up not sure how but sine all the grease is being thrown out.i assume its possible to replace one since advanced auto sells them.im just not sure how to go about doing it.any tips? im pretty sure the cv joint is still good no clicking or anything.

 

nevermind i reworded my search and im just gonna replace the halfshaft seems a better idea since i really dont know how long the boot was messed up.thanks anyway