I appreciate the info. Please correct me if I'm wrong, but I thought that I saw a forum (or two) for late model Impalas, specifically?
Not here. There is a board dedicated specifically to 1994-96 Impala SS cars (last of the four door rear wheel drive V8 powered B-bodies). The W-Body front wheel drive V6 powered cars have their own boards.
This board covers all of GM's W-bodies not just Chevys (which makes sense since they all share the same body, frame and powertrain differing only in interior and trim.):