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My 4R70w Conversion

Discussion in 'Driveline' started by 2bscrewed, May 31, 2011.

  1. Stanger00

    Stanger00 Well-Known Member Established Member

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    Thanks. He emailed that either was fine. I went with Mobil 1.
     
  2. systemdz

    systemdz Member Established Member

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    What crossmember are you guys using for your swap? I'm swapping my Mach1 from tr/3650 to a BC 4R70W w a triple disk circleD.
     
  3. Turbo98

    Turbo98 FR500TT Established Member

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    I had a T-45 and that crossmember bolted up fine. Yours might also. But I had to move it up about 5" on the frame rails due to different tailshaft housing mounting locations.
     
  4. BADASS03SVT

    BADASS03SVT Well-Known Member Established Member

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    t56
     
  5. systemdz

    systemdz Member Established Member

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    So you can use stock, just need to cut and reweld in 4r location. Thanks
     
    Last edited: Jul 9, 2012
  6. Wicked46

    Wicked46 Under Pressure Established Member

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    What fluid is everyone using?
     
  7. 2bscrewed

    2bscrewed Full Retard Established Member

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    Mobile 1.

    Just for the record, I sold the car and on the first drive for the new owner he broke the intermediate shaft on the street tune putting 780 rwhp down. just doing some highway pulls. And Darrin wouldn't answer his phone, which doesn't surprise me since he wouldn't answer for me the last time I tried to call him either.
     
  8. Turbo98

    Turbo98 FR500TT Established Member

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    Darrin can be hard to get a hold of. He took care of me after the sale and shipped out a new complete tailshaft housing at no charge when I destroyed the seal.

    Obviously I have no idea why the intermediate shaft broke in that trans. From what I understand though, shifting into O/D under WOT can break that shaft. I'm not saying that's what he did but it certainly could be a possibility.
     
  9. systemdz

    systemdz Member Established Member

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    I spoke with Darrin a couple of weeks ago and he said he has a lot of things going on now and he doesn't have time to work on transmissions right now. Put me in touch w Chris @ CircleD for my converter. Think he has moved on with his other business.
     
  10. SIr RicCuS

    SIr RicCuS Orange County Horsepower Established Member

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    Sweet!
     
  11. ctrlraven

    ctrlraven The Birdman Established Member

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    Good thing you didn't have the J-mod done to the valvebody, I bet something would of broke a whole lot sooner than it did.

    Another good auto transmission guy is Alan @ DirtyDogPerformance. DirtyDog Performance (Powered by CubeCart)

    Going to have Chris @ Circle D rebuild my PI 3500 triple disc when I pull my motor for a rebuild.
     
  12. boost42

    boost42 AssKicker Established Member

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    How do I correct m speedometer??? I'm in binary editor right now but can't figure out what needs to be changed. It's a 4r75w with 315/35/17 et streets ad 4.10 gears
     
  13. BADASS03SVT

    BADASS03SVT Well-Known Member Established Member

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    you have to change the spline count for the output shaft....I forget the correct number though.
     

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