Originally Posted by Recovry4x4

If it was a depot repower and I'll bet it is, most everything will be the same as the later deuces. Few exceptions are the locations of axle breathers, brakeshoe holdowns and front axle shaft joint design. Might even have gasser fenders on the front, that was done alot. Look at the cab floor just above the accellerator pedal. If there is a little plate bolted there it was converted. There are bunches of places to check the little things. I've had a 52 Stude and my M108 is a 53 Stude. Deuce prototypes were out for testing in 49 and full production in 1950.
Hope this helps!