Testing new fix for wheelhop: Custom Axles
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2004-2007 Cadillac CTS-V Performance Mods Discussion, Testing new fix for wheelhop: Custom Axles in Cadillac CTS-V Series Forum - 2004 - 2007; Okay four broken diff's later and no factory warranty on number 3 or 4, I have to find a fix. ...
  1. #1
    n2ojunky's Avatar
    n2ojunky is offline Cadillac Owners Member
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    Testing new fix for wheelhop: Custom Axles

    Okay four broken diff's later and no factory warranty on number 3 or 4, I have to find a fix. I broke my last diff about two weeks ago along with the drive shaft and both axles (half shafts)........who wants to know what the parts bill was? I have been running the KARS III kit and it has helped minimize the hop but not eliminate it all together, Well I bought a new carrier and put the KARS kit on minus the carrier bracket (due to the instant whine) put UUC diff bushing in and I believe I cured the hop all together but not with the KARS kit or the bushing. I had custom half shafts made which was GM's fix for the 2009. I'm not sure anyone has figured this out yet. Used was a larger diameter shaft on the left side. These axles use bigger stronger 108mm cv with chromoly cage and race set. The axles are designed to twist at different rates thus reducing the stress on the rear diff and completely eliminating wheel hop. I will put this new product to the test and keep everyone updated. The half shafts are a direct bolt in and swap right in with no other mods. The same design is used by Underground Racing on there world record setting Viper and will support over 1000hp. Kit will run $1800 which is about $200 more than replacing the factory axles from Cadillac, and if we can get together a group buy of 5 sets or more I'm sure we will get a significant discount.

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    your maker is offline Cadillac Owners Fanatic
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    Re: Wheelhop Eliminated!!!

    lets hope this is a true fix!! keep us all posted please

  4. #3
    Twitch's Avatar
    Twitch is offline Cadillac Owners Connoisseur
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    Re: Wheelhop Eliminated!!!

    Do you have to change both halfshafts, or can you just use one bigger halfshaft?

  5. #4
    whisler151's Avatar
    whisler151 is offline Cadillac Owners Connoisseur
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    Re: Wheelhop Eliminated!!!

    Quote Originally Posted by n2ojunky View Post
    Okay four broken diff's later and no factory warranty on number 3 or 4, I have to find a fix. I broke my last diff about two weeks ago along with the drive shaft and both axles (half shafts)........who wants to know what the parts bill was? I have been running the KARS III kit and it has helped minimize the hop but not eliminate it all together, Well I bought a new carrier and put the KARS kit on minus the carrier bracket (due to the instant whine) put UUC diff bushing in and I believe I cured the hop all together but not with the KARS kit or the bushing. I had custom half shafts made which was GM's fix for the 2009. I'm not sure anyone has figured this out yet. Used was a larger diameter shaft on the left side. These axles use bigger stronger 108mm cv with chromoly cage and race set. The axles are designed to twist at different rates thus reducing the stress on the rear diff and completely eliminating wheel hop. I will put this new product to the test and keep everyone updated. The half shafts are a direct bolt in and swap right in with no other mods. The same design is used by Underground Racing on there world record setting Viper and will support over 1000hp. Kit will run $1800 which is about $200 more than replacing the factory axles from Cadillac, and if we can get together a group buy of 5 sets or more I'm sure we will get a significant discount.
    Isn't that what Cadillac did in 06 to fix the problem? All the broken diffs were 04-05 Vs. The 06-07 Vs are not breaking because of the changes made to the diff and the shafts. The reason the 06-07 diffs are breaking in the 04-05 Vs is due to the weak half shafts.

    Or so I have been lead to believe.

  6. #5
    CIWS's Avatar
    CIWS is offline Cadillac Owners 10000+ Posts
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    Re: Wheelhop Eliminated!!!

    06 and 07 Cadillac used larger half shafts, but not different sizes, as they discovered was the fix with the 09.

  7. #6
    The Tony Show's Avatar
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    Re: Wheelhop Eliminated!!!

    Slightly misleading thread title much? I hope your idea works, and kudos for trying it, but it's a little premature to call it "eliminated!" before you've even tested it.
    Rest in Peace, J.D. (aka Dirt_Cheap_Fleetwood)

  8. #7
    darkman's Avatar
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    Re: Wheelhop Eliminated!!!

    Quote Originally Posted by The Tony Show View Post
    Slightly misleading thread title much? I hope your idea works, and kudos for trying it, but it's a little premature to call it "eliminated!" before you've even tested it.
    No kidding. It first has to tested to see it actually stops the wheel hop. It also has to be tested to see if stopping the wheel hop simply transfers the energy to the case causing to grenade like the pre-2006 models did. Finally, it seems unlikely it will fix the problem with the differentials becoming noisey overtime which occurs in the total absence of wheel hop.

  9. #8
    n2ojunky's Avatar
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    Re: Wheelhop Eliminated!!!

    Quote Originally Posted by The Tony Show View Post
    Slightly misleading thread title much? I hope your idea works, and kudos for trying it, but it's a little premature to call it "eliminated!" before you've even tested it.
    Sorry to jump the gun but I am pretty much convinced this is it. My V makes over 600 at the wheels, I have never driven my car in the rain even with the KARS III kit on where there was no hop, hence the first time I drove the car home from the shop it was down pouring with absolutely no wheel hop. However I haven't dumped the clutch yet (I'm just a bit scared) I have hammered the throttle at a slow roll and absolutely no hop what so ever. I will become more confidant as my bank account recovers from this last diff replacement and keep everyone posted. It will only be a matter of time before I take her back down the 1/4 mile.

  10. #9
    The Tony Show's Avatar
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    Re: Wheelhop Eliminated!!!

    No problem. I'm going to correct your thread title until a test is done then.
    Rest in Peace, J.D. (aka Dirt_Cheap_Fleetwood)

  11. #10
    n2ojunky's Avatar
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    Re: Wheelhop Eliminated!!!

    Quote Originally Posted by The Tony Show View Post
    I'm going to correct your thread title until a test is done then.
    No problem.............I'll chime in once I've punished my V a little to see if this is truly the fix.

  12. #11
    CIWS's Avatar
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    Re: Wheelhop Eliminated!!!

    Quote Originally Posted by n2ojunky View Post
    No problem.............I'll chime in once I've punished my V a little to see if this is truly the fix.

    Good luck (I don't know about those clutch dumps though)

  13. #12
    CTSV_510's Avatar
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    Re: Testing new fix for wheelhop: Custom Axles

    This fix has been discussed before but no one actually wen through with it until now. Kudos to you!


  14. #13
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    Re: Testing new fix for wheelhop: Custom Axles

    be sure to post a video of a roll and a clutch dump once you are confident in doing so

  15. #14
    liqidvenom is offline Cadillac Owners Connoisseur
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    Re: Testing new fix for wheelhop: Custom Axles

    very cool, i'm going to keep my eyes on this

  16. #15
    tweeter81's Avatar
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    Re: Testing new fix for wheelhop: Custom Axles

    I am subscribing to this thread!

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