It's not a hard job, but make sure you use caution when doing this. I'd give yourself a good day to remove and re-install.
1) TAKE YOUR TIME. Double check everything before you drop it down. It's not a difficult job, I've done it several times now, just tedious.
2) Disconnect and remove your driveshaft. Be sure you've disconnected your transmission cooler lines, remove your trans dipstick (if possible, this will make it much easier to pull out, as you won't have to raise the car up so much to get the transmission out once it's down). Disconnect your speedo cable, OD wires, shifter linkage (be sure you keep your shift linkage parts in a safe place and togther), kickdown cable, torque converter cover, the exhaust, starter (if these need to be removed), and anything else I may be missing.
3) Support the transmission with a jack (use wood blocks if you use a standard jack, see more below) Start to remove bellhousing bolts (keep these in a safe place as well)
4)start to undo transmission x-member bolts, start with transmission, then move to frame bolts. Jack up the transmission all the way up, remove x-member.
5) SLOWLY let down transmission - keep it balanced, keep an eye on your torque converter.
6) Pull transmission out from underneath car.
This is just all from what I remember when I did it. Take your time and use your head - like i said it's not difficult, just be careful, it's all pretty straightforward once you start getting into it. What type of jack do you have? You can find adapters for your jack to make it a transmission jack (round part should just pull out and then place in transmission jack, sorry, don't really know proper word for it). This will help a lot - I had to use a standard jack with a block of wood whenever I did mine (so I didn't dent the trans oilpan). I think you can get an AC Delco one for around $80-$100, if you want (this will make your life easier doing this). I used a long extension (12"-15") to get to the bellhousing bolts from underneath, this worked well for me. If I remember anythign else, I'll try to post it. If I lived closer I'd be happy to come help - Good luck! 8)
