Dave,
I went through this seal replacment a couple of years ago on a 97 2400 4x4 with 125k miles. The carrier was removed safely and quickly with just a simple pry bar (pointed at one end, hooked claw at the other). If you are interested, I wrote myself a long step by step note on the whole project which I can email you if you are interested. Keep in mind I am NOT a mechanic and that you should use your own judgement if in doubt about any instructions.