If the encoder from the old gearbox is a belted encoder :
- Remove the beleted encoder  from the old gearbox.
- Install the belted encoder assembly  on the standoffs .
if the encode from the old gearbox is not a belted encoder , remove the standoff . Move the encoder to the new gearbox.
If the air solenoid assembly has a 35-psi regulator  on the input side of the shift solenoid, remove it. Replace the 35-psi aur regykatir  with the tee fitting . On CALM machines, the air reulator  is in the CALM cabinet.
If the air solenoid assembly has an adjustable air regultor, set the air pressure to 80 psi.
Install the fitting  on the high-gear side of the air solenoid assembly. Install the hose  from the air-over oil shifting assembly to the fitting .