I don't know too much about these, The facebook Buick group helped me out alot and sent me here. I think my father was going to put them on the 67 electra years ago but they didnt fit? They definitely wont work on the 50' special, so I am just going to let them go. I am in minnesota, and all I want is $150 for the set, I am told that is low, but that is fine.