M13 is the HD 3-speed. There were also 48,506 of the M15 standard 3-speed made. 129,477 D55 consoles and 12,051 M11 floor mounted shifters. So that's about 141,500 floor shifters installed in about 221,000 cars in 67. Almost 80,000 column shifters. About 36% of 67 camaros got column shifters. But broken down to 3-speeds or whatever... what Daniel said about the database is the only reliable info.