Huffy Tandem chainguards- interchangeable?

[clerkkent]

Hi- I have a 1950s Huffy Tandem (the curvy frame style) needing a chainguard. I see many 1970s Huffy tandems (straight tube frames) availlable; are the mounting points the same between the 2 styles?

 

[jamesdart]

I'm pretty sure the newer ones are much shorter. I have a 60s huffy,I offered it to a guy here with the older frame and it seemed like there was a big difference when we measured the frames