I sold my GTO about 5 years ago and have had some parts laying around. All parts were working when they came off, no guarantees now. Mishimoto rad had small pin hole as seen in photos. Diff had about 75-80K with a small whine to it. SPEC 6 puck clutch/flywheel had about 30-40k on it. Tail lights worked, have a light tint and tab is broken on one of them. Any questions let me know.