The carrier pin would not come out while the carrier was still in the axle housing. According the the Aussie locker instructions if you cant get the carrier pin out then you need to remove the carrier, mark and remove the ring gear, install the locker, then reinstall and torque the ring gear and then reinstall the carrier in the housing. When removing the carrier you have remove the bearing caps, when I did this the adjustors on the side that require the special tool fell out before I could mark where they were. therefor I have to reinstall them and set the backlash and stuff again. So I have to have the tool to do this. In hindsight , I could have ground down the teeth on the ring gear but I would have had to do this while the carrier was in the housing (metal pieces are not good for in the gear housing) The gears are 4.56 gears and the ring gear is much thicker than the stock 3.55 ring gear and since it wasn't the stock ring gear the instructions as far as disassembly were pretty much useless and I have never taken apart an 8.25 so I forgot about the adjusters on the side and didn't think about dealing with that before I removed the caps. So where I stand not is I have the carrier back in the housing but I have to reset the backlash and adjust the side thingies to get the pattern and torque right again. Hint the need for the tool.