74 Dodge dart

hey all
I’m new to the site but have lurked for a while trying to gain knowledge of my Dart for about a year now. So like I said I own a 1974 Dodge Dart swinger, been looking into redoing the front end but I’m hearing different opinions on what body it is. Spoke to one parts dealer and he told me it was an E body forsure but everything I’ve done to the car so far has been along the lines of A body( redid the front end before, rebuilt the engine and trans). Some sites say it’s A and others E. Is there a huge difference?

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