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  1. #1

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    Driveshaft length? Skat vs oem?

    Hi guys!

    I am about to replace a skatpump and shaft with a oem pump and shaft on my SS.

    What you can see in the picture is my 14vien setback and a HO pump.
    The lenght of the shafts from propstart to end of shaft:
    Skat:23,23inches (converted from cm
    OEM:21,26 (converted from cm

    So what shaft/pump will I be needing to be able to replace my skatpump on my SS

    And you maybe have one forsale?
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  2. #2
    mrbtd's Avatar
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    Are you using the 2" extension ?

    It looks to me like the GPR shaft there is a 28" and the skat is the 30"

  3. #3
    mrbtd's Avatar
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    Just measured my 30" setback driveshaft and to the prop is about 24" so the OEM pump you have there has a 28" drivshaft.

    So with the SKAT one you can run the extension and with the OEM one you would have to take it off.

  4. #4

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    THANKS for the answer "mrbtd"!
    So the skat are a specialmade one?
    But there are a extension on both skis so why are the skat longer?

  5. #5
    mrbtd's Avatar
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    The lengths for the Skat are not special (unless custom made). Every year GPR driveshaft is 30" except for 2002. It look like the OEM you have is from a 02 ski (28").

    It is not made for the extension. It is the way it feeds into the intermediate shaft (they are what changed in 02+ ski's).

    Either one will mate up to your conversion shaft. With the longer one use the extension or find yoursef a 30" GPR driveshaft for the OEM pump you have.

    Depending on the year of your ski you may need to extend the steering and trim cable by 2"

  6. #6

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    The oem pump is from a 06, and you can see that the extensioner are there..
    And the ski where the skat was installed also have the extensioner that´s why I am bit confused.. both has the extension but they still diffrent lenght?




    Quote Originally Posted by mrbtd View Post
    The lengths for the Skat are not special (unless custom made). Every year GPR driveshaft is 30" except for 2002. It look like the OEM you have is from a 02 ski (28").

    It is not made for the extension. It is the way it feeds into the intermediate shaft (they are what changed in 02+ ski's).

    Either one will mate up to your conversion shaft. With the longer one use the extension or find yoursef a 30" GPR driveshaft for the OEM pump you have.

    Depending on the year of your ski you may need to extend the steering and trim cable by 2"

  7. #7
    mrbtd's Avatar
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    I dont know...You need Hydrotoys or call Skat. They are easy to deal with.

  8. #8

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    I know what I have missed, the wear ring is "longer" on the Skat then OEM..
    So my 06 pump fitted without any issue without the extensioner..

    But, now when I have my skat + the extensioner what shaft will I need then? is there any longer ones?

  9. #9
    Just want to ride.
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    Fitting

    Shouldn't this fit by using the stock wear ring?

    Check the difference in width between the skat and OEM - I think that might be your solution.....

    Good luck!
    Sean

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