Is my rear end going out? UPDATED - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

DonM · 04-05-2021, 02:07 PM

At first I thought it was my new tires making the noise, but today I realized that the noise I'm hearing is only coming from the back of the car. At first it sounded like I was running truck mudder tires, but now it's a definite, LOUD howling from the back of the car and it's speed variable - the faster I go, the louder it gets. But if I'm in a turn, it quiets down some.

The car has just under 140K, I don't do burnouts or hard launches (I just drive fast).

Any thoughts, ideas or options? Thanks.

Bigdumogre · 04-05-2021, 02:09 PM

Wheel bearings? Axle? Ring and pinion?

KillboyPowerhead · 04-05-2021, 03:33 PM

What that mileage my first guess would be a wheel bearing. Is it quieter when turning both left and right or just one direction? If you end up replacing a bearing I'd do both as they other is likely close to its end of life as well.

ChibiBlackSheep · 04-05-2021, 03:34 PM

When was the last time you changed your diff fluid?

Could have a seal that went bad and you leaked out the fluid.

DonM · 04-05-2021, 04:29 PM

Quote:

Originally Posted by ChibiBlackSheep

When was the last time you changed your diff fluid?

Could have a seal that went bad and you leaked out the fluid.

I changed the trans and the rear end fluids at around 50K to AMSOIL products.

Bigdumogre · 04-05-2021, 04:42 PM

Quote:

Originally Posted by DonM

I changed the trans and the rear end fluids at around 50K to AMSOIL products.

90k miles is a long time. Did you check the level of the fluid in the diff?

ChibiBlackSheep · 04-05-2021, 04:52 PM

Definitely pull the top plug and reach in to make sure you have fluid in there still.

But if you haven't noticed a leak, I would do a drain and fill and then see if the noise is still there.

DonM · 04-05-2021, 04:53 PM

Quote:

Originally Posted by Bigdumogre

90k miles is a long time. Did you check the level of the fluid in the diff?

I made an appointment with my shop on Thursday.

Bigdumogre · 04-05-2021, 07:06 PM

Quote:

Originally Posted by DonM

I made an appointment with my shop on Thursday.

Hope it’s nothing serious aka expensive lol keep us updated

DonM · 04-05-2021, 07:16 PM

Quote:

Originally Posted by Bigdumogre

Hope it’s nothing serious aka expensive lol keep us updated

Well, I've made myself paranoid thinking about how loud it was today (my mom and I had difficulty TALKING it was so loud), so I'm driving the wife's beater Exploder. I'm not going to drive the car again until I take it to the shop. The last thing I need is for my diff or a bearing to break loose at 80 mph on the highway.

I'll post what it was & how much Thursday evening.

taz1727 · 04-06-2021, 12:16 AM

Keep us updated, mine makes a howl sometimes in 4th gear. Speed variable as well

DonM · 04-06-2021, 12:19 AM

Quote:

Originally Posted by taz1727

Keep us updated, mine makes a howl sometimes in 4th gear. Speed variable as well

Mine does it in all 6 gears - at highway speeds, it SCREAMS. The more I think about it, I think it's the left rear tire/bearing. I can hear it window up or down.

ChibiBlackSheep · 04-06-2021, 08:08 AM

Quote:

Originally Posted by DonM

Mine does it in all 6 gears - at highway speeds, it SCREAMS. The more I think about it, I think it's the left rear tire/bearing. I can hear it window up or down.

Yeah that does sound more like a bearing than the diff.

ElderJ · 04-06-2021, 01:55 PM

On a side note, only in a car forum of guys is the question "Is my rear end going out?" appropriate...

04-05-2021, 02:07 PM	#1
DonM Camaro #4 Drives: 2017-Hyper Blue Metallic-2LTmanual Join Date: Dec 2015 Location: NE Ohio (Akron) Posts: 1,210	Is my rear end going out? UPDATED At first I thought it was my new tires making the noise, but today I realized that the noise I'm hearing is only coming from the back of the car. At first it sounded like I was running truck mudder tires, but now it's a definite, LOUD howling from the back of the car and it's speed variable - the faster I go, the louder it gets. But if I'm in a turn, it quiets down some. The car has just under 140K, I don't do burnouts or hard launches (I just drive fast). Any thoughts, ideas or options? Thanks. __________________ Don M Supercharged LGX + 6 speed manual = FUN!! Last edited by DonM; 04-09-2021 at 03:22 AM.

04-05-2021, 02:09 PM	#2
Bigdumogre Drives: 2012 Camaro SS Join Date: Dec 2019 Location: New York Posts: 1,434	Wheel bearings? Axle? Ring and pinion? __________________ 2012 Camaro 2SS/RS - CSP Custom Cam 232/240 .615/.615 113 +3, Texas speed CNC heads, FTI billet triple disc converter, K&N cai, Katech ported TB, GPI Ported/rod modded manifold, Texas speed 1 7/8 headers, HFC, Flowmaster 2 chambers with x pipe, Mishimoto CC, MSD wires, Roto fab washer relocation, tru cool 40k trans cooler, apex scoop, Pedders extreme coil overs and much more!!

04-05-2021, 03:33 PM	#3
KillboyPowerhead Drives: 2015 Z/22 Join Date: Aug 2015 Location: Ontario, Canada Posts: 931	What that mileage my first guess would be a wheel bearing. Is it quieter when turning both left and right or just one direction? If you end up replacing a bearing I'd do both as they other is likely close to its end of life as well. __________________ Overkill/Self Tuned; Mace Camshafts; K&N Typhoon Cold Air Intake; Ported 80mm Throttle Body/Intake Manifolds/Manifold Spacer; Solo Performance High-Flow Cats, Cat-back Exhaust; Vitesse Motorsports Throttle Controller; Elite Engineering E2 Catch Can; BC Racing BR Coilovers; JPSS Delrin Radius Rod Bushing Inserts, Sway Bars; Pegasus Aluminum Rear Cradle Bushings, Camber/Caster Plates; Z/28 Toe Links, Trailing Arms, Upper Control Arm Bushings, Rear Shock Mounts

04-05-2021, 03:34 PM	#4
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,092	When was the last time you changed your diff fluid? Could have a seal that went bad and you leaked out the fluid. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

04-05-2021, 04:52 PM	#7
ChibiBlackSheep Drives: 2012 2SS/RS, 1968 SS Join Date: Feb 2012 Location: Southeast, PA Posts: 2,092	Definitely pull the top plug and reach in to make sure you have fluid in there still. But if you haven't noticed a leak, I would do a drain and fill and then see if the noise is still there. __________________ LS3 Crate Engine Swap \| CSP Custom Cam 232/240 .615/.615 113 +3 \| Stainless Power LT Headers \| Z28 Intake \| Borla S-Type Exhaust \| FTI Triple-Disc Billet 3200 Stall 2012 Camaro 2SS/RS \| 1968 Camaro SS \| 2020 Cadillac CT5 Premium Luxury \| 2021 Spark LS

04-06-2021, 12:16 AM	#11
taz1727 Drives: 13 Camaro 2SS/RS LS3 Join Date: May 2020 Location: Miami Posts: 104	Keep us updated, mine makes a howl sometimes in 4th gear. Speed variable as well __________________ K&N Intake/ Pray Ported TB/ GPI Rod-Mod Intake Manifold/ GPI Ported Heads/ GPI SS3 Cam/ TSP 1-7/8" LTH to NPP/ Z/28 Diff/ Hendrix Offset Bushings/ BMR Delrin Cradle Bushings/ Pedders 27/32mm Sway Bars/ 1LE Shocks & Struts/ BMR 1.25 Springs/ Mishimoto Catch Can

04-06-2021, 01:55 PM	#14
ElderJ Drives: 2014 Camaro 1LT Join Date: Aug 2019 Location: Central Florida Posts: 372	On a side note, only in a car forum of guys is the question "Is my rear end going out?" appropriate...