Group Buy - 25-Spline Forged Driveshaft Slip Yokes for Upgraded 300m Transfer Case Applications

Posted by twicks69, Apr 28, 2017
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  1. twicks69

    twicks69 DSM Wiseman

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    I am having a Heavy Duty Forged Steel slip yoke manufactured for DSM AWD customers that have an upgraded 300m transfer case and are tired of replacing their twisted Spicer brand cast slip yoke. Sonnax will be the manufacturer of these slip yokes.

    The cost is $190.00 (Shipped price for Fedex Ground to USA customers; not including Paypal Fees)

    This slip yoke application is for the larger 25-spline Ford slip yoke normally provided with upgraded 300m transfer cases from me, or Liberty Gear, or Boostin Performance, TRE, etc. The cast version Spicer slip yoke is also found on the Heavy Duty DSS 3.5" Aluminum or Carbon Fiber driveshaft applications for 1G/2G DSM's.

    The standard Dana / Spicer 2-3-8431X is notorious for twisting on launches resulting in regular replacement by the user, or it becomes a binding problem on the transfer case output shaft, resulting in other damages that can occur.

    This Heavy Duty Forged Steel slip yoke remedies that problem with significantly better material being used for manufacturing, as well as better overall machining, excellent circlip fitment and beefier material around the U-Joint bosses.

    The slip yoke has a black hard coating on all surfaces for excellent longevity, resistance to oxidation and better wear protection. It is a DIRECT REPLACEMENT for the Dana / Spicer 2-3-8431X slip yoke, and is a simple 5-minute installation on the driveshaft. This also uses 1310 Series U-Joints, which is the same as the DSS HD 3.5" driveshafts.

    This slip yoke WILL NOT FIT users with stock driveshafts or stock transfer cases. It is specifically for users with 300m upgraded transfer cases using upgraded driveshafts with 25-spline slip yokes and 1310 U-joints.

    DETAILS / TERMS:

    This is a non-refundable group buy, once I get at least 30 people paid up-front for the amount I can then place the order with Sonnax for the slip yokes.

    It is a 4-month process to have them manufactured based on Sonnax's current job timeline once the group buy 30 people have commited and the order is placed with Sonnax.

    Sonnax requires me to pay up-front 100%, non-refundable deposit for the manufacturing of these; I am not holding the money personally.

    Full payment up front is required to get on the list.

    PayPal is preferred. Gift Paypal payment ($190.00) or buyer to cover 3.3% PayPal fee ($196.27 is the shipped price with PayPal fees included for USA Customers).

    I also accept credit card, verified personal checks, money orders, and cashiers checks.

    I will only place the order on these once we have 30 slip yokes paid for.

    I will update the purchase list very regularly on all post locations.


    I have provided several images of the slip yoke as well as the installed product on Mike Wohler's 2G DSM carbon driveshaft for reference.

    This Group Buy is also on my Facebook TMZ Performance Page, as well as ECMLink Forums for greater visibility.

    p1070805-800x600-jpg.332766.jpg
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    More images are in the thumbnails below.
     

    Attached Files:

    Last edited: Apr 28, 2017
    #1
    SAKJR and TSiAWD666 like this.
  2. sixfourbolt

    sixfourbolt Probationary Member

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    Nice! Let me ask, I had to cut down the yoke that I received from Liberty back a few inches. It would bottom-out in the tcase otherwise. The length in your pics looks very similar to the one I received from Liberty. Will they come the right length? Thanks!
     
    #2
  3. er82

    er82 Proven Member

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    At what power levels do the yokes start to twist?
     
    #3
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  4. twicks69

    twicks69 DSM Wiseman

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    Did your yoke bottom out in the tcase completely or did it bottom out on the splines? They are notorious for needing clearance grinding on the splines of the 300m tail shaft. I just had to do one for Adam St. John that had this issue. I took off the tail housing, and ground down the splines the whole way around at the end of the spline cut, then the regular yoke fit just fine.
     
    #4
  5. twicks69

    twicks69 DSM Wiseman

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    Typically I see them around the 600-700AWHP range it likes to twist, especially on a full weight car or people doing hard launches.
     
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  6. twicks69

    twicks69 DSM Wiseman

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    1. Eric Robinson - talonracer12
    2. Eric Robinson - talonracer12 (2x total)
     
    #6
  7. sixfourbolt

    sixfourbolt Probationary Member

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    Bottomed out completely or at least that's what I think. Never thought that it could have been the splines as the aftermarket DS yoke needed for the 300m tcase shaft was significantly longer than the oem yoke. When I tried to install the tcase, I could only slip it on the yoke so far and of course the bolts holes wouldn't line up between the tcase and trans. Had to take the yoke off after I marked where it wouldn't go in any further and get it cut-down to the proper length.
     
    #7
  8. twicks69

    twicks69 DSM Wiseman

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    The yoke should be able to COMPLETELY bottom out. If it cannot do that, then you need to do clearance work. There should be zero effort on the yoke sliding over the tail shaft. If it is binding on install, then it is a tailshaft bushing issue or a tailshaft spline issue.
     

    Attached Files:

    #8
  9. SOADweskey

    SOADweskey Proven Member

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    Can we work a discount on a transfer case rebuild with 300M output shaft to go with this group buy?
     
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  10. twicks69

    twicks69 DSM Wiseman

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    No. I am booked out several months currently and am out of stock of additional 300m gearsets ready to install. I need to send a batch to liberty currently as well as I am working on a new gearset, and building a new shop. This is simply for slip yokes group buy.
     
    #10
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  11. SOADweskey

    SOADweskey Proven Member

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    Well, it never hurts to ask.
     
    #11
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  12. twicks69

    twicks69 DSM Wiseman

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    Purchase list updated (paid members listed below)

    1. Eric Robinson - talonracer12 (DSMTuners)
    2. Eric Robinson - talonracer12 (2x total) (DSMTuners)
    3. Martin Borton - martinborton (DSMLink)
    4. Martin Borton - martinborton (2x total) (DSMLink)
    5. Derek Stidham - talon_awd (DSMLink)
    6. carbide - Wade Deslauriers (DSMLink)
     
    #12
  13. twicks69

    twicks69 DSM Wiseman

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    2 weeks left on this pre-order before I place the order to have them made. I would suggest getting one now!!!
     
    #13
  14. 95eclipser

    95eclipser Proven Member

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    Tim.

    Can you give us more info on this ""I am working on a new gearset""
     
    #14
  15. twicks69

    twicks69 DSM Wiseman

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    1. Eric Robinson - talonracer12 (DSMTuners)
    2. Eric Robinson - talonracer12 (2x total) (DSMTuners)
    3. Martin Borton - martinborton (DSMLink)
    4. Martin Borton - martinborton (2x total) (DSMLink)
    5. Derek Stidham - talon_awd (DSMLink)
    6. carbide - Wade Deslauriers (DSMLink)
    7. JohnnyTSi - John Wood (DSMLink)


    I will make a new thread for the transfer case gearsets once I have more details on it. I am still working on procuring special materials for it.
     
    #15
  16. twicks69

    twicks69 DSM Wiseman

    DSM Profiles:
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    1. Eric Robinson - talonracer12 (DSMTuners)
    2. Eric Robinson - talonracer12 (2x total) (DSMTuners)
    3. Martin Borton - martinborton (DSMLink)
    4. Martin Borton - martinborton (2x total) (DSMLink)
    5. Derek Stidham - talon_awd (DSMLink)
    6. carbide - Wade Deslauriers (DSMLink)
    7. JohnnyTSi - John Wood (DSMLink)
    8. Mark L - Mark Leasure (DSMTuners)
     
    #16
  17. twicks69

    twicks69 DSM Wiseman

    DSM Profiles:
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    Milwaukee, Wisconsin
    1. Eric Robinson - talonracer12 (DSMTuners)
    2. Eric Robinson - talonracer12 (2x total) (DSMTuners)
    3. Martin Borton - martinborton (DSMLink)
    4. Martin Borton - martinborton (2x total) (DSMLink)
    5. Derek Stidham - talon_awd (DSMLink)
    6. carbide - Wade Deslauriers (DSMLink)
    7. JohnnyTSi - John Wood (DSMLink)
    8. Mark L - Mark Leasure (DSMTuners)
    9. twokss - Steven Carver (DSMLink)
     
    #17
  18. twicks69

    twicks69 DSM Wiseman

    DSM Profiles:
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    Milwaukee, Wisconsin
    1. Eric Robinson - talonracer12 (DSMTuners)
    2. Eric Robinson - talonracer12 (2x total) (DSMTuners)
    3. Martin Borton - martinborton (DSMLink)
    4. Martin Borton - martinborton (2x total) (DSMLink)
    5. Derek Stidham - talon_awd (DSMLink)
    6. carbide - Wade Deslauriers (DSMLink)
    7. JohnnyTSi - John Wood (DSMLink)
    8. Mark L - Mark Leasure (DSMTuners)
    9. twokss - Steven Carver (DSMLink)
    10. Nathan Brown (website)
     
    #18
  19. twicks69

    twicks69 DSM Wiseman

    DSM Profiles:
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    Milwaukee, Wisconsin
    1. Eric Robinson - talonracer12 (DSMTuners)
    2. Eric Robinson - talonracer12 (2x total) (DSMTuners)
    3. Martin Borton - martinborton (DSMLink)
    4. Martin Borton - martinborton (2x total) (DSMLink)
    5. Derek Stidham - talon_awd (DSMLink)
    6. carbide - Wade Deslauriers (DSMLink)
    7. JohnnyTSi - John Wood (DSMLink)
    8. Mark L - Mark Leasure (DSMTuners)
    9. twokss - Steven Carver (DSMLink)
    10. Nathan Brown (website)
    11. Cullen Fitts (website)

    The slip yoke order has been put in as of today with Sonnax for 50x.
     
    #19
  20. twicks69

    twicks69 DSM Wiseman

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    The slip yoke order has been placed with Sonnax TODAY.

    Please make pre-orders directly on the website at - https://www.tmzperformance.com/shop...upgraded-dsm-transfer-cases-with-300m-shafts/

    1. Eric Robinson - talonracer12 (DSMTuners)
    2. Eric Robinson - talonracer12 (2x total) (DSMTuners)
    3. Martin Borton - martinborton (DSMLink)
    4. Martin Borton - martinborton (2x total) (DSMLink)
    5. Derek Stidham - talon_awd (DSMLink)
    6. carbide - Wade Deslauriers (DSMLink)
    7. JohnnyTSi - John Wood (DSMLink)
    8. Mark L - Mark Leasure (DSMTuners)
    9. twokss - Steven Carver (DSMLink)
    10. Nathan Brown (website)
    11. Cullen Fitts (website)
    12. Juan Antonio Mascorro (website)
    13. Juan Antonio Mascorro (2x total) (website)
     
    #20

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