The metal support plates that the motor mounts attach to bolt to the subframe and can be swapped out.
I am not sure about which "steering mounts" Bill is refering to.
There is no difference on the subframes between front disk and front drum.
I know the arrangement of the front "A" arm bump stop is unique for each year so you can't mix and match OEM front control arms and subframes between the years.
I mounted all my '67 steering components and engine mount support plates to a '68 Nova subframe with no issues. I used aftermarket tubular upper and lower control arms which have multiple bump stop mounting locations so they were no problem.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
