You are buying one 1969 1970 1971 1972 1973 1974 Chevelle SS Camaro Z28 Nova SS Corvette Impala SS El Camino SS GMC Sprint RARE GM High Performance Distributor Shaft # 720 CCW Not sure on all the years of usage or car model usage may be correct for the 302 DZ 327 L79 350 L82 396 L78 427 L88 454 LS5 see photos no returns. The shipping cost include some of the ebay charges,pay pal and handling costs .After you receive this part if there is a problem please contact me so we can resolve the problem before you leave me a negative feedback. Thank You.