through bit by bit. Put it a vice and slowly keep pushing it through. Drill some more. Keep going until the bush finally pops out. (The other, less environmentally sensitive way is to burn it out). Once the rubber part is out you can turn your attention to the outer sleeve of the bush that's wedged firmly in the arm. Clamp the arm in a vice and hacksaw through the sleeve as close as you can get without damaging the arm. Once it's cut all the way thorugh the thickness, start to lever the edge of the sleeve away from the bush. If you're lucky you can lever the whole sleeve on one side and curl it up into the middle. Otherwise, you will be able to lever the sleeve inwards as far down as you can go, and then press the sleeve out with a vice now that the friction has been reduced. If you were using normal metalastic bushes, this is where you would have to press them back in. In the case of polybushes, you need to place the polyurethane part into the arm and then the metal inner sleeve. The Polybush branded bushes come in two halves, and tend not to want to sit completely together the last little bit and sit a bit proud. SuperPro bushes are manufactured as a single bush and are pressed in from one side, and therefore have the right amount of protrusion. Once the bushes are fitted to the arm,