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Rear end noises after hard launch

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Old 02-11-2022, 10:03 AM
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DarkCreep
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Default Rear end noises after hard launch

2003 Z

I launched my car pretty hard about a month ago after my 7 year old asked me to 🤣🤣

Anyways right after, my Z was making noises from the rear, specially under acceleration.
I went over a speed bump and it went away.

But now when I step on the gas I feel/hear as if it's "engaging" from the rear. It drives perfectly fine besides the harsh start from a stop light. Also when I accelerate harder than usual, I hear a noise again until I stop or at least accelerate normal.

I lifted the rear and I see nothing wrong. No broken arms or axles. What else would it be? I would think the diff but besides hard acceleration, it's perfectly fine.
Old 02-11-2022, 10:53 AM
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dkmura
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How many miles are on this Z? When was the diff fluid last changed?
Old 02-11-2022, 03:33 PM
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DarkCreep
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Originally Posted by dkmura
How many miles are on this Z? When was the diff fluid last changed?
175K.

Diff fluid maybe 2 years ago with OEM fluid.
Old 02-11-2022, 07:05 PM
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travlee
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Maybe diff bushing is toast
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jhc (02-12-2022)
Old 02-12-2022, 06:55 AM
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At 175K, there could be several possibilities. When you had the Z lifted, did you take it out of gear and rotate the tires to check how the rotational play feels? Also, check the axial play while you're at it to see how the rear wheel bearings are faring on each side.
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jhc (02-12-2022)
Old 05-16-2022, 02:03 AM
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JeanFolden
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Old 04-26-2023, 11:18 PM
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In case anyone searches this in the future, one of the axles was broken lol
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