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Rear End Metallic Rattle

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Old May 11, 2025 | 11:24 PM
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Default Rear End Metallic Rattle
Can't find the source of a rattle I get on decel and when slightly reving the engine while at idle and in neutral.

Sound does not change when pressing in the clutch, I checked the common H pipe hanger springs and they were not the culprit.

Video link below. Any advice is appreciated.

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Old May 13, 2025 | 03:03 PM
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Been researching like crazy and have seen it could be torque tube related? Likely the bearings inside the torque tube failed?
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Old May 13, 2025 | 03:35 PM
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To me, that sounds similar to the loose plate I have inside one of my mufflers.
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Old May 13, 2025 | 03:45 PM
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Originally Posted by redzg
To me, that sounds similar to the loose plate I have inside one of my mufflers.
I've read that somewhere that the baffle plates inside become loose over time.
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Old May 13, 2025 | 03:53 PM
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Originally Posted by rob3eli
I've read that somewhere that the baffle plates inside become loose over time.
Jackstands won't cut it. If you don't have a lift, take it to a trusted shop. Everyone is just guessing.
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Old May 13, 2025 | 04:09 PM
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Originally Posted by lucky131969
Jackstands won't cut it. If you don't have a lift, take it to a trusted shop. Everyone is just guessing.
Agreed, I'll take it to a shop tmrw and report back
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Old May 14, 2025 | 12:58 AM
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Traced down the issue with a stethoscope. Sound is coming from the factory H pipe. Something is jingling inside there.
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Old May 14, 2025 | 07:12 AM
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Could it be exhaust flutter/jingle from the under sized holes in the h pipe?
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Old May 14, 2025 | 07:38 AM
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Originally Posted by SideOfTheRoad
Could it be exhaust flutter/jingle from the under sized holes in the h pipe?
Yep, that or that piece is loose inside. The sound is definitely coming from there. Taking it to a muffler shop right now
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Old May 14, 2025 | 11:29 AM
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Keep us posted on what you find out.
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Old May 14, 2025 | 11:47 AM
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It was the H pipe, installed an X pipe and the rattle went away
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Old May 14, 2025 | 12:31 PM
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This thread helped a ton. OP had the same exact noise as me

http://www.corvetteforum.com/forums/...n-let-off.html
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Old May 14, 2025 | 09:33 PM
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Glad it was resolved. I guess I'm buying an x pipe now, I am in the same boat.
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Old May 14, 2025 | 10:21 PM
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Originally Posted by SideOfTheRoad
Glad it was resolved. I guess I'm buying an x pipe now, I am in the same boat.
You got a metallic rattle/jingle on decel?
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Old May 15, 2025 | 11:26 AM
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Originally Posted by rob3eli
You got a metallic rattle/jingle on decel?
Very light accel, and decel, same noise as in your vid. It's driving me insane.
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Old May 15, 2025 | 12:37 PM
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More than likely the H pipe, hanger springs, or down stream o2 sensors
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