This is as close to "New Old Stock" as you can get! We build only original AC Delco speedometers. We DO NOT offer the non repairable reproductions units now on the market. Ours are totally disassembled, cleaned and repaired. They are given new bushings, recharged magnet balanced, needle and calibrated to register the correct speed. A two year warranty with no questions asked. This is the correct 80 mile per hour design with white needle for 1949-1951 Chevrolet only. Not GMC. (If you require the 1952-53 90 mile per hour unit, check resp173. HERE IS OUR RECORD: Since the year 2000, we have sold 2,000 rebuilt General Motors speedometers (1934-1966) Maybe one return and ALL from the same builder! Must have your core before we ship. NO exceptions!!