I have an older 08-SRT. These differentials are from Mercedes and def are NOT supposed to howl. I took it to the dealership I normally go to...which has been a stupid mistake the entire time I've owned this car as they are complete idiots and half the time...wait all the time, I get the car back it has to go right back in.
Anyway, last rear-differential (first one exploded) but the second one started maybe a super loud howl after about 13-15k on it ONLY at 39-46 mph, right at 43mph was the loudest. Now I notice the one they JUST put in is doing it. They claimed to replace the drive-shaft\rear diff, but I'm really trying to cut-ties and get to a better dealership. What else could cause a howl from the rear if not the drive-shaft or rear differential? I did notice there was a little fluid coming from the fill hole (prob they just didn't wipe it down) but the last diff was leaking out of the axle seal they replaced twice, and failed both times (which is why I needed a new diff). On top of that them being the cause of half-shaft replacement failure and a slew of other things that kept my car in the shop for almost 28 days as they fried the ignition system doing a lifter replacement.
Ok, basically, assuming they DID install a new diff\drive-shaft, what else could be howling? As I said it's ONLY at 39-46mph, 42-43mph is the sweet spot, it dissapears past 46, and below 39, and is most loudest in between, below that no noise. When I press the pedal it also goes away, so any "load" aka when I push the pedal, it stops, then comes right back when I let off even with a light tap.
I'm just confused, I paid for the warranty but I for the love of all that is holy don't want to take it back there again. Do new diffs\drive shafts come with an x amount of natural part warranty?
Thanks in advance, everything feels smooth at sept for the howl which I know is never a good sound, I just find it weird it is only doing it at specific speeds, like the last one they "replaced".
I should also note this SRT-8 only has 51k on it.
Anyway, last rear-differential (first one exploded) but the second one started maybe a super loud howl after about 13-15k on it ONLY at 39-46 mph, right at 43mph was the loudest. Now I notice the one they JUST put in is doing it. They claimed to replace the drive-shaft\rear diff, but I'm really trying to cut-ties and get to a better dealership. What else could cause a howl from the rear if not the drive-shaft or rear differential? I did notice there was a little fluid coming from the fill hole (prob they just didn't wipe it down) but the last diff was leaking out of the axle seal they replaced twice, and failed both times (which is why I needed a new diff). On top of that them being the cause of half-shaft replacement failure and a slew of other things that kept my car in the shop for almost 28 days as they fried the ignition system doing a lifter replacement.
Ok, basically, assuming they DID install a new diff\drive-shaft, what else could be howling? As I said it's ONLY at 39-46mph, 42-43mph is the sweet spot, it dissapears past 46, and below 39, and is most loudest in between, below that no noise. When I press the pedal it also goes away, so any "load" aka when I push the pedal, it stops, then comes right back when I let off even with a light tap.
I'm just confused, I paid for the warranty but I for the love of all that is holy don't want to take it back there again. Do new diffs\drive shafts come with an x amount of natural part warranty?
Thanks in advance, everything feels smooth at sept for the howl which I know is never a good sound, I just find it weird it is only doing it at specific speeds, like the last one they "replaced".
I should also note this SRT-8 only has 51k on it.