i finally figured it out. my car has been sitting for about 1 month. after balancing tires countless times, balancing my driveshaft, getting a full tune up, and replacing numerous other things, i disconnected my torque convertor to see if it was that. fired it up...no vibration what so ever. when i went to reconect it, i noticed the bolt holes on the flywheel were elongated quite a bit. they were almost twice as wide as they were tall. so ive got a tq convertor coming in the mail and i have to get a new flywheel...finally!

 

Well, a new flexplate will work a lot better than a new flywheel if you use an automatic transmission.

You may want to purchase an SFI-approved flexplate even though it's more money. Little heavier duty than a stock replacement. Make sure it's dual-patterened so you can use either a large or small bolt pattern torque converter (for future re-use on other motors).

BTW- you CAN bolt on a flexplate backwards. Torque converter won't ever stay put if you do (and the starter may not engage properly). Make sure you get it on with the correct side facing the engine.

 

thanks for the advice, i know its a flexplate though. i just use flywheel to describe it to some people because its a more commonly known piece. i'll make sure that i install the new one right. maybe thats how my old one got screwed up?