Replacing Speedo Gear

I need to replace the speedo gear after regearing. So my silly question is where is this located and is there anything I need to be aware of when replacing this? See my sig for leading particulars of my XJ. Thanks bunches.

Tom

Here is a link to help you out.

http://www.jeepsunlimited.com/modules.php?name=News&file=article&sid=28

Juice

Thanks, that made it easy. Do you know what the large nut is for that's inline with the speedo gear? It takes ~1" wrench. Mine was loose when I went to swap the speedo gear out. It's different than what you see on the JeepsUnlimited page you linked to. Thanks,

Tom