1951 Victoria rear ring/pinion replacement

[Don T]

My 50 Meteor (with OD) had a toasted rear end, I was unable to determine what it was but I would call it a Ford special. Could not find parts source so tried to find alternate diff, many fit under this car (Maverick for one, certain years and wheel stud spacing).However mine was a 4.10 and wanted to retain that for the overdrive but could not find anything in a newer diff with that numerically high, most were 3.^^. Did finally find a NOS ring and pinion set that was a 3.88 which is as close as I could get. My suggestion would be to go to a newer complete replacement diff as (1) It will likely be cheaper and will occur in your lifetime (2) The ford diff was not to durable behind a 100 horse flathead and expectations behind a 350 Chevy??