Not familiar with the hydraulics on your particular truck but this is what I generally do for bleeding clutch systems.
Unbolt the slave cylinder and hold it with the inlet line at top. Push in the piston on the slave cylinder (push the pushrod in). This drives any air in the slave up the line and into the master cylinder reservoir where it will bubble up thru the fluid and escape.. I do this three or four times and this gets rid of all the air.