Tranny mount replacement

I was wondering if anyone has replaced their tranny mount and whats involved in it. I looked in my chiltons manual and it didnt have specific instructions on how to do it or even where it is. Any info would be great and instructions would be even better! Thanks in advance.

Ooops. forgot the important stuff. Its a 1991 S-10 blazer 4.3L Auto 4x4.

It's on the bottom of the transfer case behind the transmission. It's mounted to the crossmember. Just remove the bottom nut, raise the trans and remove the upper bolts. Reverse to install