new set of 16 rockers 12 are still in boxes.. sorry no part# on boxes anywhere... BOX IS DATED 2002. . came out of fowlers rretirment sale. problity fit sbc of some sort .....please look at picture i will try to measure everthing .. no bolts or stands rockers only . if you buy them i will take returns for 10 days if you pay shipping back to me see business card..