Are you just wanting the ring and pinion set?
Start looking at some online junkyards/parts sellers? I guarantee there are lots of cars sitting in yards with 741 cases as everyone thinks they need the 742 or 489.
This guy maybe?
https://youtu.be/vGoanHYZe0MWildcat in Oregon
DVAP in Arizona
Tony's Parts
L&L Classic Auto
Maybe find someone who has what you want and buy them a new set of 3:55 or 3:91 gears that they would rather have and trade straight across?
Do you have a local Mopar club? Someone may have something if you post on their FB page or even Craigslist?
