take them off , take to pedders they will press old ones out and press new ones in ,then you just put them back in
pressing out old and pressing new ones in shouldn't be more than $20
usually if you buy bushes from them its free and bushes at pedders will set you back $105 for non adjustable ones
i got my set done thru them and couldn't be happier great service and quality part , i got mine done in moorebank pedders tho so service will be diff from store to store