I have an 07 Z71 (new body style) which has developed a high-pitch whine. At first I thought it might be the tires, but that was ruled out after I installed a new set.

Sounds like either the xfer case or rear diff, but could be the tranny. Just wondering if this was a known problem and if anyone has experience that here.

Thanks!

 

more then likely its the rear end.....that what ive learned anyways.....but could be wrong

 

What causes it? I've never towed anything heavier than a 43" cut lawnmower on a 10 foot trailer. Never had it off-road. Glitch from the factory?

 

idk....i mean ive had it happen to me where its whined for ever and never went then i had a budy that it whined for a week and then exploded so....but idk how many miles?

 

About 56K miles.

Thanks for the reply.

 

idk well good luck with it hahaha