I just did it on my 91 teg about a month ago - and it's an automatic (just a bit heavier). The ass that had the car before me decided to do some reverse curls... there was a chunk 2x3 missing on the bottom of the case. Back on topic - I just took it out from the bottom - it took me and a buddy 2 days to pull the replacement, the busted one, and install the replacement. It makes it easier if you have a couple floor jacks...