1998 Z28.... A4 Ok now my transmission has a vibration in it specially during 3rd. now i went to 2 transmission places and told me that there is noting in the transmission that will vibrate. now some how i find that impossible because the transmission has lots of moving parts. and i asked how much to rebuild and they tell me around $1200. and i see the rebuild kits in the internet around $200 and you could get a video in how to do it. i was going to get the kit and the video and do it my self, now i know what i am getting my self into. but i wanted to ask first if it was hard to rebuild my self, some tips in how to do it, tools i need, and things like that. anything i could lern will be usefull and apreciated.