How loud will solid diff and solid subframe bushing

[Tones]

Here is a short video of my interior with solid CMP Differential and Subframe bushings.

https://youtu.be/H90AHMLyl18

https://youtu.be/zUDd40IPwuU

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Thanks. I think I'd find that annoying after awhile.

Turns out shipping isn't that bad

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[mrgizmo04]

Poly in a lot of cases is a downgrade, it flexes more than stock and falls apart over time. The stock bushings are pretty stout, they are mainly steel with like a few mm of rubber between the inner bushing and the outer sleeve.

I think latest wisdom for diff is either using stock or full solid.

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[mtech9]

stock diff, RevShift diff - very subtle 'whine' nothing like the vid posted. For a fun car I wouldn't hesitate. (I daily).

[Arith2]

Poly in a lot of cases is a downgrade, it flexes more than stock and falls apart over time. The stock bushings are pretty stout, they are mainly steel with like a few mm of rubber between the inner bushing and the outer sleeve.

I think latest wisdom for diff is either using stock or full solid.

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This really bums me out because I have ECS poly diff bushings that have been sitting in a bag for a couple of years.