HELP!! Knocking noise from passanger side

I was wondering if some one clould help. When driving no matter what speed I have a knocking sound that changes pitch and speed with diffrent speeds comming from the passangers side of the car I grab the half shaft and it is sloppy but it dose not seem sloppy enough to knock could this be my problem? How hard is it to change the halfshaft?

I just put on new Hubs about 6,000 miles ago.


Thanks
JD

Check your CV joints for torn boots.