Transmission mount inquiry

Discussion in 'Mazdaspeed 3 General Discussion' started by efruzx, Apr 23, 2025.

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  1. efruzx

    efruzx Greenie N00B Member

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    I just installed the damond PMM with the stiffer bushing and I noticed that when starting the engine, the PMM keeps its side nice and still, but the side with the stock mount shakes a good amount. Should I also replace the transmission mount or is the shaking normal?
     

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  2. btstarcher

    btstarcher Gold Member

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    Yes, as soon as reasonably possible. That bushing will fail, dropping the transmission onto your LCA and CV axle.
     
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