15x10 steel wheel with 7.25" backspace?

Sorry, misread that! Not enough coffee yet I guess.

But yeah, disregarding the bit about the style of axle most of what I said about the wheels still applies. No one makes a 15x10 with a 7.25” backspace off the shelf, and I doubt anyone ever did unless it was custom job. That’s a ton of backspace for a steel wheel. Heck it’s a ton of backspace regardless, even the modern 18x10’s on my car “only” have 7” of backspace.

Wheel Vintiques takes custom orders, but it doesn’t look like they list any of the Chrysler styles on the website. You’d have to call them. And looking at some of their max backspaces, there’s no guarantee the Chrysler wheels would be available with 7.25” of backspace on a 15x10 even if they did take a custom order, since some of their other 15x10” styles max out at 6-7/8”.
Wheel Vintiques

Seems to me like the rear axle is still too wide for that choice of wheels. The most I see offered off the shelf in a steel wheel is 15x10 with 5.5” of backspace.