what year Rangie?
1982 had the high comp motor with the .0996 high range transfer gears that are QUIET Mine was very quiet in its first life after rebuilding the whole thing at 230000k I sold it with 525000k on it and it was still quiet.
I rebuilt it as did not check the oil in the transfer case and when towing a boat it got a bit hot and smashed the bronze thrust washers, my fault not the gearbox.
In my opinion one of the best boxes ever made for the rangie

