Snapped DriveShaftShop 500HP rear axle

Discussion in 'Mazdaspeed 6 Transmission/Drivetrain' started by romepetodo, Feb 19, 2016.

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  1. romepetodo

    romepetodo Greenie Member

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    Has anyone snapped this driver shaft? My "mods" are ebay DP, HPFP internals and an COBB OTS map, so probably making just a bit over stock power. While semi lunching from a stop light (Was not paying attention and got a few horns blown behind me) The Axle snapped right before the inner CV, basically right at the differential. They are supposedly rated for 500hp. So I am trying to see, how the hell did this snap when I am most likely making less then 280hp. Am I on the wrong for expecting this not to snap, if they are rated much higher?

    P.S. I am also known as apena85 on that other website :D
     
  2. Enki

    Enki Motorhead Platinum Member

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    Don't hard launch on street tires, especially in conditions where you will dead hook, and not without preloading the drivetrain. Also, why did you "upgrade" the axles in the first place? The stock ones are handling 10 second passes at well over 600 WHP on slicks (which helps with axle survive-ability quite a bit, mind you).
     
  3. phate

    phate Motorhead Silver Member

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    How long have you had them? There were some early ones that I remember breaking on 1 or 2 cars.

    Could just be a faulty axle.

    Could be axle angle, with either soft suspension or soft diff bushings. Softly sprung cars seem to wreak havoc on axles more than others.
     
    phate, via a mobile device, Feb 20, 2016
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  4. DJERN

    DJERN I Mix Potatoes Greenie Member

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    dont they have lifetime warranties?
     
  5. romepetodo

    romepetodo Greenie Member

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    Trying to find that out. Says limited warranty on the edge auto Web page.
    [doublepost=1456023437][/doublepost]Replaced because stock CV was in bad condition when I bought. Figure why not upgrade as they are cheaper the OEMs.
    [doublepost=1456023922][/doublepost]
    Ive only had them for appriximatly 6-8k miles, but keep in mind thats about 2.5 years as I only drive the car from the train station home. Less then 3 miles away.

    Stock suspension, but aftermarket diff mount. Can't remember the name, but it's the mount that has six mounting points. I replaced it all after buying the car and having the oem mount fail withing the first 6 months and having to replace the differential.
    [doublepost=1456024076][/doublepost]Here is a picture of it.
     

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    romepetodo, via a mobile device, Feb 20, 2016
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  6. Enki

    Enki Motorhead Platinum Member

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    Hate to break this to you but "upgrade" and "cheaper" are rarely used in the same sentence, especially when talking about the same object.
     
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  7. romepetodo

    romepetodo Greenie Member

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    I see what you are saying. But, when I called the dealer the stock rear driver side shaft was something like ~$500. So, I was recommended this which edge had for $399. Figure it was a no brainer, add that with 15% off.
     
    romepetodo, via a mobile device, Feb 21, 2016
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  8. mps611

    mps611 Greenie Member

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    U can get stock axles for like $189 on rock auto I believe

    Sent from my Nexus 7 using Tapatalk
     
    mps611, via a mobile device, Feb 22, 2016
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  9. Enki

    Enki Motorhead Platinum Member

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    Over, and over, and over again at that.
     
  10. romepetodo

    romepetodo Greenie Member

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    Finally got a reply from DSS. They are replacing it, no question asked. Still curious to see where you guys are finding MS6 rear driver side for that cheap. I see the passenger side and the front going for much cheaper, but not the driver side.
     
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  11. romepetodo

    romepetodo Greenie Member

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    They just send me the refurbished part. It seems that little sleeve on the spline was a separate piece. It is now is one solid piece with the CV joint housing. 20160308_213819.jpg
     
    Last edited: Mar 9, 2016
    romepetodo, via a mobile device, Mar 8, 2016
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