Replace Rear Main Seal?

Discussion in 'Mazdaspeed 3 General Discussion' started by Jonb, Aug 18, 2024.

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  1. Jonb

    Jonb Greenie Member

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    Hey All,

    I am swapping out my clutch on my Gen2 sitting at 125k on the ODO. What is everyone’s thoughts on changing out the rear main seal whilst I’m in there?

    I got a main seal with the install tool, and the axle seals. The rear main looks fine when inspecting it and probably does not need to be changed out at this time.

    Would ya’ll change it out preemptively as hopefully not have to go back in there relatively soon? Or could changing it out possibly mess up a good thing?
     
    Jonb, via an iPhone, Aug 18, 2024
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  2. SyntheticAtmosphere

    SyntheticAtmosphere You only get ONE ride, ONE ticket, ONE time! Silver Member

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    Back in the day, rear main seal technology led to the idea of changing it while there is access.
    Todays seals are far superior to the old rope and 2 piece designs. You are probably fine.
     
  3. Raider

    Raider Administraider Administrator Platinum Member

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    It's at minimum 11 years old now. Swap it with a new oem one.
     
    Raider, via an iPhone, Aug 18, 2024
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  4. Jonb

    Jonb Greenie Member

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    Holy Fuck long reply lmfao. Thank you two for responding. I’m sure it would have been fine, but went ahead and installed it recently.

    With working a lot and having no motivation, it took a while. On the upside, now that she’s back on the road, I’m definitely happy I’m back driving the Speed.

    Also luckily for me, I had an E blend in there for 9 months
     
    Jonb, via an iPhone, Jan 5, 2025
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  5. Raider

    Raider Administraider Administrator Platinum Member

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    Glad it's alive!
     
    Raider, via an iPhone, Jan 6, 2025
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