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Feedback on poly/stock differential mounts

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Old Aug 20, 2018 | 08:04 AM
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Default Feedback on poly/stock differential mounts

I have my driveline out, going back with either the stock differential mount or the Sac City mount. I have heard feedback that poly diff mounts put more noise into the passenger compartment, any experience with that?
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Old Aug 20, 2018 | 09:33 AM
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I just put in Hinson motor and diff mounts. I would say there is not more noise but there is more vibration. What's your setup? Stock? Modified?
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Old Aug 20, 2018 | 11:20 AM
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Originally Posted by 99blkfrc99
I just put in Hinson motor and diff mounts. I would say there is not more noise but there is more vibration. What's your setup? Stock? Modified?
01 Z, LS2 402. The trans and diff are both tired and being rebuilt now to handle the higher hp. Rick at RKT cautioned me about poly mounts, so I am looking for input. As of today, stock motor and diff mounts.
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Old Aug 20, 2018 | 11:23 AM
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I would look into the pfadt mount. Even the poly mount still allows the trans/diff to move around a lot.
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Old Aug 20, 2018 | 12:21 PM
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Originally Posted by frodo84
01 Z, LS2 402. The trans and diff are both tired and being rebuilt now to handle the higher hp. Rick at RKT cautioned me about poly mounts, so I am looking for input. As of today, stock motor and diff mounts.
what was the caution about that he said. Just curious. Thanks
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Old Aug 20, 2018 | 12:36 PM
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Originally Posted by 99blkfrc99

what was the caution about that he said. Just curious. Thanks
Noise coming from the drivetrain is what prompted me to drop it all out. I disassembled the TT and the couplers look fine, the bearings are not as loud as I would have expected after hearing the noise before disassembly. I asked him his opinion, and he thinks that poly transmits more noise/vibration than stock.
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