been a while since ive posted in here, so my car is manual, it uses a flywheel, its being balanced to match the 3.8sc flexplate so i dont throw balance out, but with that being said when you install a flexplate on the stock gtp tranny i notice there is an oblong hole, same with my flexplate, how do you install it so you make sure your balance isnt say 45 degrees out? ended up getting nasty vibration from my flywheel after reinstalling the origional that was in the car for 1.5 years