Has anyone seen a 2.10 Diff ?

I'm in the process of restoring a 58 Fury and after taking the chassis to the sandblaster, I decided to spin the rear wheel and calculate the diff ratio. I spun the rear wheel exactly one revolution and the yoke on the differential rotated exactly 2.1 times (2 full revolutions and then 1 inch). I repeated this test on each wheel (independently) and the results came back the same.

The numbers on the diff are as follows:

3 A

1820657

241

Has anyone ever seen or heard of a 2.10 Diff?

THanks

Mike

did you lock the one wheel prior to turning the wheel for a ratio count? The odds of a 2.10..not likely..the better ratio of that time was more in the tune of a 2.92