Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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Has there been any repairs to vehicle lately? a tire replaced? is 1 tire worn badly?
Do you have a 2wd option on your switch? Does the noise go away when in 2wd?
Do you know if it has a locking rear differential? In the glove box should be a label with a bunch of 3 digit codes and your VIN can you look for a G80?
Not the VIN. a label in glove box has 3 digit codes
Dont know where you have taken it. I definitely am believing you have a transfer case problem. Do you have a small leak just above the fill hole?
I would be concerned with the hair line crack. There is a problem with these transfer cases . if you look at the case they will have what looks like an oil spot on them. The case is actually cracked and the clutch is destroyed inside.