I would recommend disconnecting the driveshaft too :D
Don't know what a T5 weighs, but an A833 is a handful (140 lbs?). I've balanced many a A833 on the saddle of my floor jack and only had one fall off, luckily away from my hands and fingers!
Oops, OK 12 bolts (companion flange on this one). I don't know what it weighs either. I'll guess right around 100 lbs. which is less than 1/2 of what I'm used to.
