71-72 charger diff in A bodie ?

If you already bought it I guess you'll make it work. Maybe if you put some FWD wheels on the rear.
They typically have much deeper backspacing. If you can't find the right Mopar axle, I'd look for a brand f!
Either way you'll have to move the spring pads. I hope you can get your money back.

Ok, I just looked at your post again, are you just needing this so you can keep the car mobile, and not for street use? If this is true, maybe look for two space-saver wheels/tires, they're pretty skinny, and should easily clear.