8 3/4 springs on the cheap

Do you happen to know the offset on the wheels and do they rub the outer wheel well?
I am looking at these with the 27mm offset.

View attachment 1716325235
The tires are tall and I do get a little rubbing occasionally. I think it is tread and not sidewall though. The wheels have a 4" backspace as far as I know. I bought them used from a member here and they came off a 65 Dart so I just brought them home and bolted them on.