Using LX (New Charger/Magnum/300) Wheels on a 74 Dart

pretty sure 7 1/4 rears were 4x5 bolt pattern. your is almost certainly an
8 1/4 rear end which i think is a little narrower than an 8 3/4. if you ran a
8 3/4 from a B-body the wheels would be centered nicely in the wheel well.
they look good !!

Great to know!
I'm not exactly good with knowledge of the rear ends on these cars, plus it hasn't needed any work since I got it!

Thanks for the compliments everyone!
I haven't figured out what size tires I'm going with, but I'm thinking more and more that it will be 235/45/18s all around.
I would love to have just a small amount more of sidewall all around, and I only want to have to buy tires one more time.
As I said, when I finally make a decision, I'll post pics and the appropriate size!