RTO 9513

Hi/lo cylinder is slow or not competing shift. Could be air psi, could be dirty cylinder bore, could be actual hi/lo synchronizer. Can't tell you more without seeing in person.

Put some wd40 in trans air lines.

 

Wait my bad, you said direct to OD. Not HI/Lo.

Overdrive slave valve will not stop it from moving. Just won't shift to OD.

Still might verify Hi/Lo makes a complete shift.

 

No,

Answer my question. Does it stall the engine?

 

That makes no sense boss. But it sounds like its in 2 gears in mainbox, which will stall the engine.

 

I thank one of the lock bolts between a shift fork or a shift yoke and a shaft came loose. The shaft is sliding inside of it. When there is no pressure on anything resistiance between the two allows it to shift. The next time there is some pressure on the gears and or he shifts quickly. The fork and the sliding clutch stay in that gear. Then he shifts it into another.

 

Between you and me sure. But his description is all over the place.