Can anybody help me identify this front axle?

Put the Tcase in N, jack up a wheel. Spin the wheel one revolution and count how many times the pinion goes around. Chalk mark one of the U Joint caps for easy counting.
3 turns= 3.08
almost 4 = 3.73
little over 4 = 4:10
4 1/2 = 4.56
No mess quick and not very dirty. Butttt pulling the cover will tell you more,,, stock or aftermarket gears, locker, overall condition etc.
Thats not a bad idea! After some reading, im pretty sure its 3.73. Checked with the vin and it confirms it, along with perusing these forums seeing how others with the same setup explain their experiences