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#2417978 - 12/13/17 12:24 PM 2013 challenger rt rear dif noise & fluid
ledft79 Offline
mopar

Registered: 12/23/07
Posts: 530
Loc: minot north dakota
I've recently developed a rear end noise. My car is muffler delete so I can only hear the noise, off throttle and I can only hear it at 20 mph or so and less. It is a clicking noise, (in the rear end, I believe) that gets faster and slower with speed, but is faster than tire speed. It is not a heavy click (or clunk) and I'm leaning towards thinking that I have a chipped or pitted bearing. Does this make sense or is their other common problems. Also is 75/90 the correct fluid for this? Thanks in advance.
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#2418261 - 12/13/17 09:45 PM Re: 2013 challenger rt rear dif noise & fluid [Re: ledft79]
ledft79 Offline
mopar

Registered: 12/23/07
Posts: 530
Loc: minot north dakota
The noise is definitely more pronounced when in neutral and the rear end is free rolling. The noise can be heard through a stethoscope coming from inside the rear dif. We drained the dif. and the oil was very dark (not burnt) with a slight brass metallic sparkle to it. There was also lots of sludge on the magnet, but no metal fragments. I was hoping to avoid a full tare down, but I think that it's going to be necessary.
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