I have a case 1838 with mclaren protracs. I purchased the machine with them, but they did not come with the tool to put them on. I have done it a few times with my ATV winch and a snatch block to pull them in to place, but it doesnt get them as tight as I would like. My question is, does anybody have pictures, or even an explanation of how they work, or maybe even one for sale? Where to buy one? I have the capabilities to build a proper tool, but I cant find how they hook up, or what they even look like. Any help on this matter would be greatly appreciated.