[Clovishellcat]

Hellcat rear end whine

youtube.com

May have to turn the sounds up a bit to hear.

I have a whining type sound coming from what sounds like the rear end of the car. I can only hear it at freeway speeds and it’s louder in 8th than 7th.

2016 Hellcat Charger 21k miles. Only mod is a Dynomax muffler.

Anyone have any experience with this sound? Thanks in advance.

 

[Mattm400]

I don't know of anyone who DOESN'T have this. It's a common thing with these cars. Mine does it a little at 70mph with only 2900 miles, I just go faster & it's gone!

 

[Slidd]

You can try a diff oil change but that almost never cures the whine, the oil change with additive will usually cure the groan in turns but the whine if bad enough, usually means a new rear diff.


Sent from my SM-N960U using Tapatalk

 

[Reaperhwk]

I have a brand new JB with 1000 miles on it. I can hear a slight whine at highway speed if I let off the throttle and coast FYI. I don’t think it’s as loud as yours though.

 

[usmc341]

Every one of my SRTs has had this. Common and harmless. Don't take it to the dealership. They will screw it up by changing out fluids and doing unnecessary rear end swaps. You're fine, just drive it.

 

[Sarna March]

It sounds as if the sound is not regarded as a precursor to any failures, immediate or otherwise, yes?

 

[qwk93ta]

All 4 of my challengers had gear whine

 

[Gotgap]

Most do it, live with it or play the dealer game, the choice is yours

 

[Clovishellcat]

Ok general consensus is it’s normal. I was just making sure I wasn’t messing anything up by driving. I heard about the supercharger bearings going out in earlier model years and wanted to make sure this wasn’t the issue.

 

[Ross61]

Let your wife sit in the front seat.

See if the whining moves.

 

[Yzfguy06]

It’whines it’s normal. Put a dif brace on and listen to it get more whiny…

 

[LarrysRedeye]

Hellcat rear end whine

youtube.com

May have to turn the sounds up a bit to hear.

I have a whining type sound coming from what sounds like the rear end of the car. I can only hear it at freeway speeds and it’s louder in 8th than 7th.

2016 Hellcat Charger 21k miles. Only mod is a Dynomax muffler.

Anyone have any experience with this sound? Thanks in advance.

My 2021 has had a diff whine since the day I drove it home 550 miles ago, between 40 and 50 mph , if you have a quiet rear end the 75w85 diff oil factory fill my be fine, it just means ring and pinion are set to the correct depth and ring and pinion have the proper profile on the teeth and surface finish is good and a few other things, I am going to change mine to a higher viscosity oil maybe the old viper 75w140 , the goal is to keep the ring and pinion gear teeth from touching each other a few microns will do it. I doubt you will be able to measure the mileage loss with the thicker oil, also these thin walled aluminum casting allow more noise to escape, the old iron rear end housings really made a noisy rear end sound better as they held in more noise . I listened to you sound clip it is louder than mine, if I were you I would put the higher viscosity diff oil it and see what happens, the longer you drive it with a whine the less chance to help the whine as over time the gear teeth will create a bad gear profile.

 

[2ndAmend]

I have a brand new JB with 1000 miles on it. I can hear a slight whine at highway speed if I let off the throttle and coast FYI. I don’t think it’s as loud as yours though.

Ditto at 2kmi.

 

[SoDakRedeye]

I have a brand new JB with 1000 miles on it. I can hear a slight whine at highway speed if I let off the throttle and coast FYI. I don’t think it’s as loud as yours though.

I have a JB as well with 550 miles. I hear the whining when barely on throttle to maintain highway speed. No throttle no whining, on throttle to accelerate up a hill no whining.

 

[Unholy707]

Ufo.

 

[Unholy707]

I thought this was gonna be one of those prank videos where the tell you to turn your volume up all the way and then it’s someone moaning so didn’t listen I’ll take your word for it though I’m on rear 2 they all whine eventually all it takes is 1 track hit

 

[Sarna March]

My 2021 has had a diff whine since the day I drove it home 550 miles ago, between 40 and 50 mph , if you have a quiet rear end the 75w85 diff oil factory fill my be fine, it just means ring and pinion are set to the correct depth and ring and pinion have the proper profile on the teeth and surface finish is good and a few other things, I am going to change mine to a higher viscosity oil maybe the old viper 75w140 , the goal is to keep the ring and pinion gear teeth from touching each other a few microns will do it. I doubt you will be able to measure the mileage loss with the thicker oil, also these thin walled aluminum casting allow more noise to escape, the old iron rear end housings really made a noisy rear end sound better as they held in more noise . I listened to you sound clip it is louder than mine, if I were you I would put the higher viscosity diff oil it and see what happens, the longer you drive it with a whine the less chance to help the whine as over time the gear teeth will create a bad gear profile.

As an experiment, you could put ridiculously-thick oil of some sort in their just to do a test drive around the block. If super-thick oil didn't make a difference, well, the oil doesn't seem to be the problem.

 

[ledft]

My 2015 Hellcat whined for over 100K miles. I only heard 50K of it when I got my hearing aids 😁 . There are TSBs about it and several discussions on this forum as well. You might just want to get used to it.
I don’t want to say it’s impossible to get rid of it though. I got a 2022 Redeye with no whine, even with my hearing aids 😉

 

[Unholy707]

I changed my diff fluid and it got louder lmfao go figure then again it could be the diff brace. It only makes a noise on deceleration and low speeds, like a lash adjustment issue

 

[2ndAmend]

I thought this was gonna be one of those prank videos where the tell you to turn your volume up all the way and then it’s someone moaning so didn’t listen I’ll take your word for it though I’m on rear 2 they all whine eventually all it takes is 1 track hit

Play it backwards!