GN radiator custom built by Holmes Radiator (now American Radiator) in DSM. 4 core with H.D. internal trans/oil cooler. AN fittings for oil cooler. Roughly 6 years old. (3000-3500 miles) Prefer not to ship if possible. Coolant temp. very consistant with a/c and FMIC. Still in car, will remove if sold. (Not aluminum)$150 plus shipping if needed.