4Lo Whine

Got out in the sleet and snow before the salt trucks. Hit up some fancy neighborhoods where traffic is sparse and hills are steep. First opportunity to safely switch into 4x4. Tried 4Lo, and the high pitched transfer case sound while accelerating suprised me. I suspect it's normal, but just wanna double check. As I approached 20 mph it was almost howling. All well and good, right?

Oh yeah, truck is 10 days old.

 

normal

 

mine does it too...believe its normal...

 

Normal. You are hearing the noise of the planetary gear set in the transfer case spinning.

 

^ yep that's what your hearing, just a 4 by going what it dose best. Normal

Brett

 

Switch to 4hi if you wanna go fast?

 

ive noticed a similar noise in 4 hi , also normal????? kinda worries me a bit with the problems ive had already

 

Shouldn't really be making any extra noise between 2wd and 4wd.