Matt,
I wouldn't worry too much about breaking it off if that's the only way. You can get new ones that are much easier to get on and off. The only way I was able to remove mine without breaking was to take two large flathead screwdrivers, slide them in on either side where those two "flaps" are, then of course wedge those flaps outward away from the agitator post while lifting upwards. Eventually you'll see how it works. The two flaps just snap on and lock.
Once you get that thing out of there only 3 large bolts hold the tub to the tranny. You'll need a pretty good size rachet to get those off. Get that tub off of there and you'll be looking at the boot and the two rings that hold it in place. I used a hexnut screwdriver on those to get them loose and release the boot.
Back to the rachet to remove the 6 nuts holding the transmission to the suspension below the outer tub. Once those are out you can lift it out and it'll be nice and heavy. That's the beauty of a GE tranny. It is all one piece that is easily replaced from the top. This would be a good time to really clean the outer tub, maybe a new belt, and whatever else you might need to do inside.
The hardest part will be getting that boot just right so it seals again. Also be very careful of any debris around the boot. I got a nasty stick from a rusty needle once.
If you need anything just let me know!
Jon
