Rear diff compatibility

I have a 1973 Barracuda with a 727, currently a 741 case rear diff. I've located a rebuilt 489 case rear diff with 3.55 gears and sure grip. Owner says it was out of a 1970 Charger. My question is will my axles fit without issue, and what will I need to change on my yoke.
TIA
Author: Matt68