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That's good to know. Thanks for educating me in that. The more knowledge I have, the more it will help me when trying to get Chrysler to make this right. At this point I will not be happy until they replace the entire rear axle/differential assembly. There is no way a dealer shop can replicate...

The rear differential is definitely messed up. The original noise was made much worse after the rebuild, plus new noises are now existing after the rear diff rebuild. As far as the noises when 4WD Auto is engaged, it could be the transfer case. I don't know at this point.

Unfortunately after the dealer rebuilt the rear differential, I've literally got all the symptoms that you described. I've got gear noise upon acceleration and deceleration along with the harmonic resonances at the particular mph's that I listed. It's a real mess. A level 3 technician at the...

Thank you. I appreciate all the replies. This will help me a great deal when I return to the dealer, meet up with the Chrysler rep and try to hopefully and finally get this truck repaired correctly. I'm going to try and make that happen this time (replace the entire assembly with one directly...

Yeah, I have the brake squeal too. They replaced some stuff per TSB, but it didn't help.

The front axle does sound low or dry to me!

Thanks for input. I think my noise and now noises are just an anomaly to this particular axle/differential. I was really hoping they all weren't that way. That's why I started this thread. I wanted se to make sure there were good set-ups out there. Thanks to all for input.

Thanks for your input. I really appreciate it. I believe what you are saying. I really doubt if the dealer service department is going to get the rear diff as precise as it came from the factory. I'm going to ask that they replace the entire rear axle/differential as a factory complete unit...

Does anyone who has a 3.92 Rear end get any kind of high pitched noises or gear whines? I originally had a high pitched noise from the factory at 43 - 44 mph. The Chrysler rep drove my vehicle and had the dealer replace the rear ring & pinion plus associated bearings. After the rebuild, I now...

You won't get any argument from me on poor quality. The assembly quality on my $70,000 Longhorn was abysmal. Luckily, my dealer was able to fix most of the interior alignment, squeaks and rattles. Now it's the important stuff that makes it a truck - the mechanicals, that are being difficult to...

No, not at all. You gotta laugh. I was so careful when I ordered this truck. I spec'd everything out exactly the way I wanted it. I just got a bad one. At least you really can't hear front axle noise at highway speeds. The 70 mph high pitched sound takes over. Geez, they should have rated this...

The V.I.N.on this truck is 666.

Yeah, it's not Dolby Atmos though.

I'm sure that employee was just doing what she was trained to do. Management most likely doesn't show them the big picture. I tried to Google that department, but found nothing pertinent. Frankly, I'm not sure what was being done about my truck on the regular case. All the agent did was call...

I heard from FCA today. As I said earlier in this thread, the dealer opened a case with Chrysler on my truck. The agent told me that my truck qualifies to be transfered to the "Enhanced Customer Satisfaction" department. I asked the agent what that means. The agent said she did not know, but...

My dealer opened a case on my 2019 Ram 1500 Longhorn that has been plagued with problems. Today I was contacted by FCA to let me know that my vehicle qualifies to be transferred to the Enhanced Customer Satisfaction Department. I asked the agent what that meant. She replied, “I don’t know...

You are right. One would think a drivetrain in a pickup truck would be rudimentary stuff! How many years have they been making them now? I drove my Longhorn to work today. After I got off of I-83 on the way home. I hit some back roads and turned the fan speed on the climate control down low...

I'm thinking that the water had to have been in there from the factory. I didn't see the oil myself, I'm only going by what the service manager told me. He stated that it looked like milk. Perhaps there was a contaminated batch of oil at the factory. That would mean there are other trucks out...

How many miles do you have on your truck now? I have a similar axle symptom as to what you described as unwrapping. My truck did the same thing at low speed at a parking lot stop sign. I actually thought someone hit my rear bumper. This happened Saturday, right after I picked the truck up...

Yes, they rebuilt the differential. The truck has never seen water other than rsin. It spends most of its time under my carport on a battery maintainer. I bought it now, keeping the mileage low, to use when I retire in 7 years. I know, bad idea since it will depreciate.... When I correspond...