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2004-2007 Cadillac CTS-V Performance Mods Discussion, Gforce Engineering half shafts in Cadillac CTS-V Series Forum - 2004 - 2007; Chris: I'll give you a call when I get a free minute today. The main reason I'm hoping for a ...
  1. #61
    nmaier2201's Avatar
    nmaier2201 is offline Cadillac Owners Connoisseur
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    Re: Gforce Engineering half shafts

    Chris: I'll give you a call when I get a free minute today. The main reason I'm hoping for a 1 piece driveshaft is to reduce the play in the drivetrain... care to shed some light on your design? Would you be removing that pillow mount on the end of the driveshaft to reduce play? or just the joint in the middle? I can't imagine there is a lot of play in that joint (of course there will be a little) my guess is that the culprit (like everything on our car) is the rubber.

    Also you interested in the whole cradle or just the half shafts?

  2. #62
    GFORCE1320 is offline Cadillac Owners Enthusiast
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    Re: Gforce Engineering half shafts

    Quote Originally Posted by nmaier2201 View Post
    Chris: I'll give you a call when I get a free minute today. The main reason I'm hoping for a 1 piece driveshaft is to reduce the play in the drivetrain... care to shed some light on your design? Would you be removing that pillow mount on the end of the driveshaft to reduce play? or just the joint in the middle? I can't imagine there is a lot of play in that joint (of course there will be a little) my guess is that the culprit (like everything on our car) is the rubber.

    Also you interested in the whole cradle or just the half shafts?
    I bought some half shafts but would still be interested in the entire rear cradle.

    As long as there is room for a one piece driveshaft, here is my pitch.
    I wont make a driveshaft unless we can use the tried and true slip yoke on the front that uses the large 1350 series u-joint and the rear will get a billet pinion yoke and another 1350 series u-joint.
    No adapter or driveplates will be retained or used.
    This method has worked tremendously well in the GTO with great reviews to 160 mph with no vibrations what so ever.
    I'll offer an aluminum shaft as well as a carbon fiber shaft. The carbon fiber shafts are sfi approved and have been sfi tested to stand up to 2800 ft lbs of torque and have been dyno tested to 180 mph with not a single problem.

    The time frame on these components would be about 6 weeks or so.

    I'm real good about sharing design, R&D & machine shop photo's.

    Thanks
    Chris

  3. #63
    deedubb's Avatar
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    Re: Gforce Engineering half shafts

    Sweet. Would love to see aluminum and Carbon Fiber pricing.

  4. #64
    GFORCE1320 is offline Cadillac Owners Enthusiast
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    Re: Gforce Engineering half shafts

    Should be real close to what I offer for the GTO.
    Aluminum 3.5" shafts $899.
    Carbon Fiber 3.75" shafts $1299.
    Both would come with a billet pinion yoke so you wont get the vibrations that are common when using adapters that other companies use.

  5. #65
    GFORCE1320 is offline Cadillac Owners Enthusiast
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    Re: Gforce Engineering half shafts

    I see my competitor are stepping in right behind me as usual
    That's ok though, a bit of compitition keeps us all on the right track.

  6. #66
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    Re: Gforce Engineering half shafts

    I had the bushing inbetween the two pieces of our driveshaft go bad. Couldn't replace just that and had to buy the whole driveshaft. I was under warranty and I looked at the bill when done and the stock driveshaft comes in right between Gforce's two options. Sounds like a good deal.

  7. #67
    GFORCE1320 is offline Cadillac Owners Enthusiast
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    Re: Gforce Engineering half shafts

    I'm also in talks with Monster Clutch Co. to start selling thier clutches on this forum. The best clutch out there in my opinion.

  8. #68
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    Re: Gforce Engineering half shafts

    Quote Originally Posted by GFORCE1320 View Post
    I'm also in talks with Monster Clutch Co. to start selling thier clutches on this forum. The best clutch out there in my opinion.
    I've got the first Monster Clutch in a CTS-V. 1500 miles so far.

  9. #69
    Kmajecki's Avatar
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    Re: Gforce Engineering half shafts

    Quote Originally Posted by GFORCE1320 View Post
    I wont make a driveshaft unless we can use the tried and true slip yoke on the front that uses the large 1350 series u-joint and the rear will get a billet pinion yoke and another 1350 series u-joint.
    So the driveshaft has the u-joint instead of a block of rubber, but what about the other components? The tranny and the diff. Are they already capable of being swapped to a u-joint as well?

  10. #70
    smashn808 is offline Cadillac Owners Fanatic
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    Re: Gforce Engineering half shafts

    I'd be in for a set.

  11. #71
    GFORCE1320 is offline Cadillac Owners Enthusiast
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    Re: Gforce Engineering half shafts

    Quote Originally Posted by Kmajecki View Post
    So the driveshaft has the u-joint instead of a block of rubber, but what about the other components? The tranny and the diff. Are they already capable of being swapped to a u-joint as well?
    Yes, a u-joint. No more adapters or rubber donuts. It makes a big difference.
    And yes, the diff and trans are not much different then what do now with the GTO.

  12. #72
    GFORCE1320 is offline Cadillac Owners Enthusiast
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    Re: Gforce Engineering half shafts

    I might add that the axles I'll be making will be very similar to the axles that one of my Australian customers has in his 4 door twin turbo Holden. He has ran 9.11 @ 150+ in the 1/4 mile.
    We've never had a set of our 300m axles broken, ever!

  13. #73
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    Re: Gforce Engineering half shafts

    Quote Originally Posted by whisler151 View Post
    I've got the first Monster Clutch in a CTS-V. 1500 miles so far.
    Which clutch did you go with?

    I should have all the Monster Clutches on my web site soon.

  14. #74
    rockken_ctsv is offline Cadillac Owners Member
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    Re: Gforce Engineering half shafts

    Half shafts for me. Axle hop sucks.

  15. #75
    GFORCE1320 is offline Cadillac Owners Enthusiast
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    Re: Gforce Engineering half shafts

    Just to give you an idea on what we do, here are just a few parts we've developed for the GTO market.

    First photo is one of our stub to stub and driveshaft packages featuring our spool for the hard core guys.



    Here is our new "Outlaw" serious of stubs featuring the largest axle on the market for the GTO in a one piece billet 33 spline.
    It is shown here compared to the OEM 28 spline stub.



    And here is our very popular Level 2 300m half shafts assembly.
    I know the CTS-V is a bit different but I'll show them off anyways.


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