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Rear End is Skipping/Chattering?

STINSAN3

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STINSAN3 Senior Enthusiast

STINSAN3

Posted
Posted

Every now and then my rear end on my truck has been chattering like when you make a sharp turn or just go around the the corner going slow. I figured it would be okay. Well, yesterday and today, it’s been more frequent. Like the truck chatters, skips going around slow sharp turns. I don’t know what the problem is. Has to be something in the rear diff? Maybe the stock G80?

 

Every time it happens it’s been on dry roads and in 2WD. Roads aren’t slick or nothing like that. Usually when I pull out on turns. High speed no problems to note. It’s a 2014 Chevy Silverado LTZ 6.2L with 3.73 gears. Approaching 60k miles. I haven’t had a single mechanical issue out of this truck, since I’ve had it for almost a year now.

 

I was gonna change the front & rear diffs fluids along with the transfer case once Spring arrives and warms up. Maybe I should do that sooner now. I really don’t know what to do now.

 

Anyone else had this problem, if so what did you do to fix it? I just don’t know what to do or what would y’all recommend? Still stock tires, if that makes a difference. Thanks guys!

 

39516edf88194a0e9dc794f6dd4547a2.jpg

 

 

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txab Senior Enthusiast

txab

Posted
Posted

Sounds like the G80. Try changing the fluids. Remember the G80 requires NO friction modifier additive. Many use Mobil 1 synthetic or Amsoil severe gear oil 75w-90 in both diffs is fine

STINSAN3 Senior Enthusiast

STINSAN3

Posted
  • Author
Posted

Thanks! I have like 3-4 bottles of Amsoil Severe Gear Oil in 75w-90 at the house!
I guess that should stop it, hopefully.

I looked in my Owners Manual on break at work, it says for the rear on 1500s. Use 75W-85. Using 75W-90 still be alright?

joshc64311 Enthusiast

joshc64311

Posted
Posted
3 hours ago, STINSAN3 said:

Thanks! I have like 3-4 bottles of Amsoil Severe Gear Oil in 75w-90 at the house!
I guess that should stop it, hopefully.

I looked in my Owners Manual on break at work, it says for the rear on 1500s. Use 75W-85. Using 75W-90 still be alright?

I used 75w-90 its been 30k still going strong

STINSAN3 Senior Enthusiast

STINSAN3

Posted
  • Author
Posted

Hopefully, it’ll help it. If not, gonna stress the hell out. Only ride I have.

 

 

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wforrest08 Senior Enthusiast

wforrest08

Posted
Posted

Should have powertrain warranty left 5 year/100k on a 14? That’s what my 15 is I believe 16 is when it went to 60k? I’m assuming it’s a NHT max tow without tow mirrors since it’s a 373 gear?

STINSAN3 Senior Enthusiast

STINSAN3

Posted
  • Author
Posted
On 3/5/2018 at 2:14 AM, wforrest08 said:

Should have powertrain warranty left 5 year/100k on a 14? That’s what my 15 is I believe 16 is when it went to 60k? I’m assuming it’s a NHT max tow without tow mirrors since it’s a 373 gear?

Yeah, I got an appointment next Tuesday to have it looked at. Haven't drove my truck since this past Sunday morning. Been driving my Moms Ford Explorer, its pretty nice for what it is. haha! 

Nanotech Environmental Enthusiast

Nanotech Environmental

Posted
Posted

G80 Eaton govlock differentials have been known to lock up when you don't want them to. Had this issue on my last truck. Couldn't figure out what was causing it, so scrapped it and installed a Truetrac.

STINSAN3 Senior Enthusiast

STINSAN3

Posted
  • Author
Posted

Well, took my truck to the dealership this morning. They said something in the rear end is broke. Main guy that does differential work, won’t be in till noon or so. Doesn’t know for sure till they break it down. Guess the G80, took a dump.

So, now I’m in a 2018 Chevy Silverado DC, not too bad.

ac0ebd8a2fc93fcd2f03cbeec792c05d.jpgf3e9b5182bcb41e11087ad2c6f6392ce.jpg


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