Noooooo!
Those aren't X1/9 arms! The bushings for X1/9 arms are seperate form the "Tube" brazed to the arm. You need some sort of press and blank/plug like what I made! All the wrong things that I mentioned, happened to me, so I know the work arounds and process works...
First, make a press. Then,
It is best to have a spare arm. First drive the center of the bushing out and remove all of the rubber. Next, cut the outersleave out of the arm, from the OUTSIDE, do not damage the outer sleave of the bushing.
Next, sand/polish the empty bushing outersleave outside so that it's outside diameter is smaller and will not get stuck in the arm when you use it to push in new bushings, if you push a bit too far one way.
Now drive the center and rubber out of the bushings in the arms you are keeping, clean out all the rubber..... here comes the teadious part(I had to do this because of rust welding the bushing sleave to the arm tube) thread your fine tooth hacksaw blade through the bushing and useing the hacksaw carefully cut through the old bushing outersleave in two places, roughly 45 deg apart. If you cut into the arm a TINY bit dont worry. Once you have sectioned the sleave, if your lucky, it will fall out, if your not(like me) you will need to use a punch and hammer to seperate the bushing sleave from the arm tube.
After the outer bushing sleaves are out, use a dremel to remove ALL of the corosion inside the arm tube, polish it even. Do the same to the outsides of your new bushings.
you are ready to press you new bushings. Spray a little WD40 on them to lube the works a bit... make sure you are perfectly alinghed, and using you old sanded outer sleave, press the new bushing into place SLOWLY and CAREFULLY. (it WILL creak and pop! It is a tight fit!) I got one a micromilimeter out of line and ruined my first plug because the new bushing jammed a fourth of the way in.
BTW I tried to just press out the old bushings straight off with a pipe plug a little smaller than the bushing, and crushed the end on the arm because the bushing was corrosion welded to the arm tube. Yes, I had three sets of Arms in my parts bin.
I had more pictures, of the whole process, but the mem card got deleted for other things before I downloaded them, I forgave her.