yea firefastsi is right. the only thing i have to add is if you can get ahold of another jack it makes puting the tranny back in easier. jack the tranny up with the jack and have another person line up the tranny.

i replaced my clutch on my 88 dx about 5 months ago. had to go about it in a similar manner. the hardest part is gettin the tranny back on. its easiest if you have two or three people working to get it back in. i had two (myself and a friend). it wasnt exactly easy to get everything lined back up. good luck to you.