Transfer Case Grinding in 4WD - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**truckster** · 02-03-2021, 10:58 PM

I just got my Blazer running again after 8 years. I took it out for a drive today - everything seemed good in 2HI, but in 4HI and 4LO there's a grinding noise coming from the transfer case. It's a 350/350/NP205 drive train. The transfer case worked great before I parked it due to a thrown rod. I did disconnect the driveshafts to move the transmission and transfer case while I was working on it, but I didn't disconnect the transmission from the transfer case.

Any ideas?

02-03-2021, 10:58 PM	#1
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 7,848	Transfer Case Grinding in 4WD I just got my Blazer running again after 8 years. I took it out for a drive today - everything seemed good in 2HI, but in 4HI and 4LO there's a grinding noise coming from the transfer case. It's a 350/350/NP205 drive train. The transfer case worked great before I parked it due to a thrown rod. I did disconnect the driveshafts to move the transmission and transfer case while I was working on it, but I didn't disconnect the transmission from the transfer case. Any ideas? __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson



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