Did a little digging here and found this..good to help identify what you have.
https://www.google.com/url?sa=t&rct=...8Hh8F7xRAvY9Hd
On another forum, I found that the only ratios offered for the Eaton axles were 4.10, 4.57 and 5.13..
Might start looking at 14B axles