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Fat Boy Torsion Springs

This is a discussion on Fat Boy Torsion Springs within the Polaris forums, part of the Brand Specific Snowmobile Discussion category; Hey Sled heads I need some advise on what torsion springs to buy and where. I do have an xtra 10 suspension installed with the ...

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Thread: Fat Boy Torsion Springs

  1. #1
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    92Indy500EFISP's Avatar
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    Hey Sled heads

    I need some advise on what torsion springs to buy and where.

    I do have an xtra 10 suspension installed with the springs that came with it, the donor was a 96 Indy I think.

    My 92 Indy 500 wedge is sitting pretty low when I get on, my torsion springs are stock and original and sagging. What other year Polaris sleds can I get some stiffer springs from to hold up my 230lbs and will fit the xtra 10 skid. Does somebody make aftermarket springs for the Indy wedge?


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    polaris1man's Avatar
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    Yep, go to Polaris website and check the numbers, if they have a Euro spring, buy it. If not, let me check in the garage, have some round ones from my '96 XCR600 that should work

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    POLARISDOMINATOR's Avatar
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    ive got the same problem

  4. #4
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    92Indy500EFISP's Avatar
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    [font=Verdana][12pt]Hey polaris1man

    From what I have been able to gather from searching the net is that I may need a Med spring (Polaris OEM part) and it sounds like a square wire is what I am looking for. The problem I have is I dont know the years that xtra 10 suspensions where made. So searching for the correct Oem springs and upgrading will be a guess.

    I was hoping someone here had done this transplant and or spring upgrade on a extra 10 skid for a heavier guy (230lbs) with Polaris springs from a different sleds maybe 2 ups. Good old fashion shade tree mechanic part swapping to achieve the desired results.[/12pt][/font=Verdana]

    Attachment 173630

    Attachment 174286



  5. #5
    I need SNOW!!!
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    92Indy500EFISP's Avatar
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    [12pt][font=Verdana]I just returned from the garage and discovered my 92 original OEM 8in skid and it had a larger dia wire in the spring than the springs on the installed xtra 10 skid, so I swapped them out, but with no snow I will have to wait to test it out on the trail.

    It sits higher now and compresses less (about 3 in) when I sit on it flat on the garage floor. I don't have any way to measure the outside dia of the springs. I will buy an outside caliper soon and give it a measure and update here so others can benefit from my findings.

    In summary the xtra 10 skid I bought had smaller springs than the original skid so I installed the original springs that came on my sled on the xtra 10 skid. I hope when I get the time to go up north to the snow and ride, it works out the way I want it to.[/font=Verdana][/12pt]

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    polaris1man's Avatar
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    Look at you, all ready a garage mechanic!! Let me know if that set up doesn't work, I've got extra torsion springs in the garage

  7. #7
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    92Indy500EFISP's Avatar
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    Thanks polaris1man

    We are finally getting snow now I will be able to test soon, I will update asap.

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