It's common / normal for the t-case to be noisy... Out of the 6 I've encountered, I have yet to hear a quiet one! Mine has a distinctive whine to it, especially when decelerating. Are you certain it has gotten louder lately, or did you simply not hear it before?
I'd certainly check / change the oil as suggested, but as long as it's not popping out of gear... run it.
Jon
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Where are we going and why am I in this handbasket?
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1951 M52 Tractor with 6-71N Detroit Diesel
1952 V18A/MTQ Studebaker Earth Borer - Pole Setter GASSER AND STAYING THAT WAY!
1962 M197A1 Converter Dolly
1966 M274A2 Mule
1967 M105 Trailer
1968 M35A2 Kaiser-Jeep W/W
1968 M146 Trailer
1970 M274A5 Mule NEED REAR ENGINE GUARD. STOOPID $$$ WILLING TO BE SPENT - PM ME!!!
1984 M1009 Blazer
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