My first post! Just got a 02 vert with 60k. Car feels super strong but have no idea what was done to it. I got a speed cal (gears but no idea what kind); x pipe with cats (no idea what type); steeda shifter; def lowered (not sure how much or brand) . Couple questions for you all. Any idea how I could find out what kind of gears are in the back? What kinda springs? AHH and my only critical question is that occasionally I feel a "bump" in the chassis (under my ass) when puttting into gear, could this be a tranny/motor mount? Thanks everyone, I've already learned a crap ton of info from reading your posts.