Removing The Saturn/Warn Overdrive

Then remove the shift rail from the rear of the housing.

Remove the five bolts that run through the case of the overdrive with a 9/16" socket.  Gently pry the overdrive case away from the transfer case. Keep in mind that the gasket sealer and the bearing that rides in the planetary hub assembly may fight a bit.

You must remove the star shaped snap ring with some needle nose pliers.  Then remove the the star washer (a 3/8" socket extension helps a little).

Then use a 1/2" socket extension to unthread the planetary assembly from the transmission tailshaft. 

This should have been torqued to 100-130ft lbs, so it might take some persuasion.