You might be right!
I checked the back of the rims and it says "4-1/2" by one of the lug holes. I measured as best as I could with the rubber still on the wheels and it is less than 4-1/2 wide from the mounting bead on one side to the other. Here's a photo of my Charger from a few decades ago with the big-n-littles on it
-NJSteve