The tool is a tube about 16" long. Closed at one end with 1/2" sq drive at one end and slightly larger in dia at the other. It has a sliding retainer for the included crowsfeet. You put the tube over the ITR and the crowsfoot over the flats on the inner end of the TR. Slip the two together, rotate the retainer to lock it in place. The "Rack" is flat where the teeth are that mate to the Rack pinion. If you don't use something to prevent the race from rotating during removal of the TR you risk damage to the Rack Pinion by bending or chipping of the teeth. The tool is also good because it gets the ratchet out in the wheel well where it is easier to get to. If I can get my camera to work and fiure out how to post pics here I will put them up tomorrow.