Engine Mount Differences?

'62-'66 A-body Slant-6 engine mounts are all the same size, shape, and configuration (lefts are different to rights). There's a different set of mounts called out for 4-speed cars (any body style) and convertibles (any transmission), but they're still the same size, shape, and configuration. Probably just a different rubber stiffness, which doesn't matter any more now if you buy the good ones.