Check with Nitrohouse. I don't live in Canada but I know they have a ton of CD3 parts. I wish you would have posted up on here last week because I could have swapped you front diffs. I'm putting in a one-way and your trying to put gearing into it, dang. Oh well. Check out the thread for CD3, there is a lot of good information there.
Traxxas 2wd Slash
Ex-One Eighth Racers of Toledo member :( no mo money