The 1969 M code 440 A body driver side motor mounts, both steel and rubber, are not the same parts used on the H code A body1967 to 1969 Cars also
Actually an M-Code drivers motor mount is made from a 383 A-Body mount (originally used on a 65 C-Body big block) by bending it out, lopping off one of the mount holes, and adding a 6" piece of angle iron welded onto the top of the mount and drilled for use on the 440 oil pump boss that is drilled and tapped. The rubber biscuit is the same 383 and 440.