[banshee42096]

okay i dont know if its normal or not for some odd reason i had my radio turned down while i was in 4x4 and when i let off the go pedal i hear a real slight grind noise soon as you touch the go pedal it goes away?61000 miles on her now

 

[01Duramax6spd]

I have it too,but it's in 2wd and 4wd . Happens when I downshift or brake. It's not my brakes either. It goes away part of the time too? Have a bad carrier bearing but not sure that is it.

 

[chaseum]

sounds like it may be your u-joints.

 

[ccchevyz]

start checking differentials

 

[banshee42096]

i was leaning towards tranfer case ?not sure though

 

[01Duramax6spd]

i was leaning towards tranfer case ?not sure though

That's my thought . My front output is loose,but t-case doesn't get hot.

 

[ccchevyz]

on my 06, i had this same problem...grinding noise only on deceleration and took it in and now im getting a new ring/pinion...

 

[Deere3500]

I have the same problem on my 2000. I'm pretty sure its the t case. I was going to take the front driveshaft out and see if it changed anything! Hopefully I get some time soon. Working around 80 hours a week makes it hard to find anything...I'll post if I find anything!

 

[hemisareslow]

Turn your radio back up!

 

[Deere3500]

If only that worked permanently!! LOL

 

[chaseum]

That's my thought . My front output is loose,but t-case doesn't get hot.

The front output is always loose.

 

[01Duramax6spd]

The front output is always loose.

How loose? You can rotate this,like the bearing isn't tight on the ouput. That the way it normally is?

 

[mikey98e]

I've got 2200 miles on my 3500 and I hear a chattering sound when in 4-wheel drive when decellerating too. I had a tundra and the only way I knew it was in 4x4 was the light on the dash and the hard steering. I figure the GMC has heavy duty components compared to the tundra so there would be some noise.

-mike

 

[banshee42096]

my noise dont sound like a backlash problem whine its more of a grind and its very slight i did turn the radio up and noise is gone now .i was just wondering if its normal or am i at the begining stage of failure.

 

[chaseum]

How loose? You can rotate this,like the bearing isn't tight on the ouput. That the way it normally is?

If you grab it at the output you should feel slight movement up and down.