How do you remove the speedometer housing for a np208 transfer case?
 

I recently got my transmission fixed for my chevy k-5 blazer. The people at the shop didn't tie down the speedometer cable and it got burned on the exhaust. While trying to replace it, one of the metal ends broke off in the transfer case. I'm trying to take of the speedometer housing but it will not budge. I have already taken the bolted looking c thing off. Here is a pic of what I'm trying to get off: http://i904.photobucket.com/albums/ac246…
I have been yanking on it as hard as I can yet still no luck. Any help is appreciated.