This was a used Warrior that was just bought, so there's no knowing what the last owner did to it. He claimed that it was sitting at idle when the transmission locked. No gear teeth were broken, so that might be true.
The shift forks look fine. There is an oil channel that runs through the...
I just split the cases on a '99 Warrior to diagnose a stuck- in -gear problem. The 2nd gear "wheel" (that is, the physical gear) was seized to the "drive axle" shaft, and had to be pressed off. Both the inside of the gear and the shaft were seriosly galled. Nothing else in the bottom end...