I am am getting a new axle this week, do i need all the other stuff like, carrier, new hubs,lock nut etc...? or can i just use the stock ones?

You can use all of your old stuff again. The only thing that might need to be replaced is the axle nut(the nut by the clip). The stock nut and collar will wear out from use. The goodcheap way to go is to by the Rad locking nut for about $50. The best way is to get the anti fade lock nut. If you try to use your old nut and collar, wrap it in go fast gray tape.

I have a lonestar axle lock nut with rotor on ebay just search 300ex