ZL1 Rear end noise - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Fishinfirefighter · 08-31-2016, 08:40 PM

I dont think the little noise is really as much of a big deal as everyone made it out to be in the beginning to be honest. Mine did it new, they changed the fluid out and it quieted down a bit. Its still there a little but ive put 20k mi since then and it really is only noticeable when cold. You dont see many "My rear end is shot, blown out, dead, broke etc" threads popping up and plenty of people stil have the noise so I wouldnt worry about it. Beside with some proper exhaust you cant hear it anyway lol.

4510 · 08-31-2016, 08:48 PM

Quote:

Originally Posted by Fishinfirefighter

I dont think the little noise is really as much of a big deal as everyone made it out to be in the beginning to be honest. Mine did it new, they changed the fluid out and it quieted down a bit. Its still there a little but ive put 20k mi since then and it really is only noticeable when cold. You dont see many "My rear end is shot, blown out, dead, broke etc" threads popping up and plenty of people stil have the noise so I wouldnt worry about it. Beside with some proper exhaust you cant hear it anyway lol.

Well I put about 500 miles on after the installation of the Diff, axles, and driveshaft. Royal Purple fluid, dumped it, filled it again. I've run nearly 5k miles on this fill and still when cold I get the moan. That is what started me researching this phenomena and seeing all the posts and TSB. I wondered if it was the Royal Purple but folks seem to have it on factory fluid as well. If it isn't "hurting" anything then the noise doesn't really bother me. To add to this I am running solid subframe bushings so I am apt to hear a little more than others might anyway.

Semperhoya · 03-10-2017, 10:11 PM

I had the exact same kind of sound and at 26,000 miles GM gave me a new diff... That one repair paid for the cost of my GMPP warranty... Only problem was it took ten days to get a diff from Detroit out here to Colorado Springs.

Stephen12ZL1 · 03-11-2017, 07:57 AM

use the GM fluid and see if the sound goes away.

Snowwolf · 10-31-2017, 02:15 PM

What is the GM fluid for the diff ?

Dega Man · 10-31-2017, 03:50 PM

Quote:

Originally Posted by fonegod

I had mine changed within 30 days of owning. (Tulsa, America) It did work, but 60K miles later it is back. Now they are saying that they want me to pay 600.00. Ha the dealer and GM can kiss my ass. Put the old shit back in and I will go Buy a Ford!!!! Divorces are really very easy these days...

WOW $600.00 to change the rear differential fluid, that is unbelievable! That is easier to do than changing the oil, like Bryan stated change it yourself.

spadz93 · 11-01-2017, 05:37 PM

Talk about thread from the dead. TSB PIP-5097

http://www.camaro5.com/forums/showth...light=PIP-5097

ZL1 Maniac · 11-02-2017, 05:21 PM

Quote:

Originally Posted by Snowwolf

What is the GM fluid for the diff ?

AC Delco Part Number 88862624 75w-90

christophe · 05-06-2020, 11:30 AM

Hello,

Rear end differential "noise" on deceleration. This happens when I let off the gas and are coasting. It's pretty faint, but once you notice it you can ear.

ZL1 Conv. 2014 - 40.000kms
automatic gearbox replaced at 30.000kms

How to solve? Any feedbacks? Thank you.

JB'sZL1 · 05-06-2020, 12:44 PM

Ascertain proper fluid (AC Delco 10-4034, GM#88862624) is present and appropriately filled. Why was the transmission replaced at 30k kms?

christophe · 05-06-2020, 01:08 PM

Quote:

Originally Posted by JB'sZL1

Ascertain proper fluid (AC Delco 10-4034, GM#88862624) is present and appropriately filled. Why was the transmission replaced at 30k kms?

Replacement of fluid planned next Tuesday with 2.1 litters of :

Transmission replaced by previous owner.
It seem he was adept of runs and burns

JB'sZL1 · 05-06-2020, 01:24 PM

If he screwed up the transmission, I'm just hoping he didn't do the same to the differential.

christophe · 05-06-2020, 01:29 PM

Quote:

Originally Posted by JB'sZL1

If he screwed up the transmission, I'm just hoping he didn't do the same to the differential.

I hope... wait for the result of fluid update.

ZMEnow · 05-06-2020, 01:57 PM

Quote:

Originally Posted by christophe

Hello,

Rear end differential "noise" on deceleration. This happens when I let off the gas and are coasting. It's pretty faint, but once you notice it you can ear.

ZL1 Conv. 2014 - 40.000kms
automatic gearbox replaced at 30.000kms

How to solve? Any feedbacks? Thank you.

That's a backlash issue on the ring and pinion, pretty common in this car. Some of the 13's had a carrier issue that would howl on both accel and decel, but the only fix for that is to replace the whole carrier. Unless you personally know someone or a great racing rear end shop that specializes in rear end set up, just leave it. It’s no longer under warranty and GM dealers only know how to replace the Ring and pinion with new and reset lash. They are not capable of getting the lash better than you have it now, so it will be worse. The other option is to buy a new pig and replace the whole carrier, or find a wrecked one and hope it doesn’t howl also.

Just curious is it between 67-72 assuming you have an M6 in 6th.

03-11-2017, 07:57 AM	#32
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,815	use the GM fluid and see if the sound goes away. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

11-01-2017, 05:37 PM	#35
spadz93 BUMBL Z Drives: 2015 ZL1 Join Date: Nov 2013 Location: Northern NJ Posts: 2,577 View My Garage	Talk about thread from the dead. TSB PIP-5097 http://www.camaro5.com/forums/showth...light=PIP-5097 __________________ Sold: 2015 ZL1 M6, Rotofab Intake, LS3 throttle body, 2.55 Upper/9.17 Lower, Custom Camshaft, DMS Reinforced Brick, ID1050X, 1 7/8" Headers, ProSpeed HX/Reservoir, DSX Aux Pump/Flex Fuel Sensor, E85, McLeod RXT, BMR 1" Drop, 680rw 93/750rw E85, Tuned by CSP Sold: 2010 2SS, some bolt ons, 415rwhp/400rwtq

08-31-2016, 08:40 PM	#29
Fishinfirefighter Drives: Zl1 Join Date: May 2016 Location: Ftw Texas Posts: 204	I dont think the little noise is really as much of a big deal as everyone made it out to be in the beginning to be honest. Mine did it new, they changed the fluid out and it quieted down a bit. Its still there a little but ive put 20k mi since then and it really is only noticeable when cold. You dont see many "My rear end is shot, blown out, dead, broke etc" threads popping up and plenty of people stil have the noise so I wouldnt worry about it. Beside with some proper exhaust you cant hear it anyway lol.

03-10-2017, 10:11 PM	#31
Semperhoya Drives: 2013 Camaro ZL1 convertible Join Date: Oct 2016 Location: Colorado Springs Posts: 1	I had the exact same kind of sound and at 26,000 miles GM gave me a new diff... That one repair paid for the cost of my GMPP warranty... Only problem was it took ten days to get a diff from Detroit out here to Colorado Springs.

10-31-2017, 02:15 PM	#33
Snowwolf Drives: HSV LSA Gen f gts Join Date: Oct 2016 Location: London Posts: 16	What is the GM fluid for the diff ?

05-06-2020, 11:30 AM	#37
christophe Drives: CAMARO CONVERTIBLE L99 2012 Join Date: Aug 2014 Location: FRANCE Posts: 66	Hello, Rear end differential "noise" on deceleration. This happens when I let off the gas and are coasting. It's pretty faint, but once you notice it you can ear. ZL1 Conv. 2014 - 40.000kms automatic gearbox replaced at 30.000kms How to solve? Any feedbacks? Thank you.

05-06-2020, 12:44 PM	#38
JB'sZL1 Drives: 2013 ZL1 and 2019 Ram Laramie Join Date: May 2017 Location: Milwaukee Posts: 1,259	Ascertain proper fluid (AC Delco 10-4034, GM#88862624) is present and appropriately filled. Why was the transmission replaced at 30k kms?

05-06-2020, 01:24 PM	#40
JB'sZL1 Drives: 2013 ZL1 and 2019 Ram Laramie Join Date: May 2017 Location: Milwaukee Posts: 1,259	If he screwed up the transmission, I'm just hoping he didn't do the same to the differential.