Hi,
If it is happening when turning, I don't think it has to do with the transfer case. Make sure simple things are not causing it like a loose steering gear. Also, if it was a CV joint, you would hear a clicking sound when turning the wheel sharp. Take a look through this link:
https://www.2carpros.com/articles/how-a-cv-joint-works
Now, I have dealt with the front drive shaft causing a crunching sound under a load. They have a CV joint in place of a traditional universal joint which can fail and make noise. Do you only hear it when you place a load on the engine?
If you look at the attached pic, I highlighted what I'm referring to. Keep in mind this would not be the cause if it happens in park or neutral when turning the wheel.
Let me know. Also, if you could record it and upload it so I can hear it, it would be helpful.
Take care,
Joe
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Thursday, December 31st, 2020 AT 10:35 AM