[Ross F-1]

Originally Posted by pickup

..... I did check on Dana 41's and no one has one either junkyard or specialty drive train house has a 3.72 gear for a Dana 41
...

3.73 was the standard Dana 41 ratio for 48-50 F-1's. There are hundreds if not thousands of 3.73 axles around, having been replaced with 9" rear axles. Just watch craigslist and eBay.