they shouldnt be to bad i have taken out the stub axel but never the arm yet, but it should be just a straight through bolt on either end of the arm then the top i think its a ball joint that connects it to the stub axel. undo that and hit it so it comes out. the only prob is im not sure if they are a press in press out bush if they are you may be able to cut it out but it is a shit of a job or have to take it to a suspention joint to do it for ya, if ya have the arm already out it shouldnt cost to much. hope it helps a bit.