Depends on what you have now. There should be a tag under the hood with a 4 digit number on it. SR will be 4636, gen1's were 4625, you may have 4222 or 4636, or even a rara avis 4875. You're gonna miss the 36hp diff between the 3.5 and 3.0, but not an insufferable amount.

I think there were lsd gen2's, too, and that's almost as good as a locker, just not as sexy.

Not responsible for advice not taken...