I've been tossing around this question with a few people and i want to see what the majority think. With all these mods we're all doing..when does an 03 lose it's identity of being an 03. I've read on other boards, and heard comments, merely swapping out the IRS and going to a live axle..it's no longer an 03. Even swapping the Eaton to a Kenne Bell makes this car lose it's identity. So what is the determining factor, if there is one, of when our cars are no longer an 03?