Were there any optional ratios available this year? Someone abandoned this auto, less engine (L82), trans, front running gear, and most of the interior. There was a body shop nearby and i suspect that this was once a project gone south. It still has the complete rear differential w/brakes, front glass, windshields, and misc interior pieces. Since I'm new at this "Vette stuff", Will these parts be acceptable spares for the 75 coupe my wife and I just started?