Funny story to go with this one.
Bought a used front and rear axle assembly from a guy who said they were 3.73 (currently have 3.07). Opted to do the harder one first. If you haven't fooled with it before I can tell you getting a wobble free and good aligned front end in a lifted jeep isn't always easy.
So after a LOT of cussing and thanking the Lord for impact wrenches and air compressors I got the new axle in.
Yep, it is also a 3.07.
Sigh...