5 speed to auto swap

Discussion in '96-04 - 2V Specific' started by jfor441, Jul 2, 2007.

  1. jfor441

    jfor441 Legend

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    Hey guys.... I have a couple of questions. After the last couple of weekends of going out to the track, I am hooked and want to start doing some bracket racing. That being said, I have the motor well on its way but my question comes down to the transmission. I love driving a 5 speed, but for consistency at the track an auto would be better. Any of ya'll run some race ready transmissions? What all would be needed for me to swap from the 5 speed to the auto?
     
  2. DropTopPony

    DropTopPony Administrator Staff Member Admin SN95 Supporter

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    you can buy complete swaps from www.mpsautosalvage.com or find someone who wants to do a reverse swap as thats more common. You might even be able to get them to do the work or pay for it since they usually want a 5 sp more then you want an auto. Our auto's are pretty good (4R70w) A good place to buy a complete race prepped unit would be www.bc-automotive.com
     
  3. jfor441

    jfor441 Legend

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    Awesome DropTop! Thanks for that. I been searching the interweb and several other mustang sites with very litttle dealing with the 4r70.
     
  4. DropTopPony

    DropTopPony Administrator Staff Member Admin SN95 Supporter

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    For the absolute best 4R70W info go over to www.tccoa.com
    Thats the forums for Tbirds/Cougars/Crown Vics....they all came with auto's so thats the place to read up. They have a Trans 101 section with articles written by Jerry W, he is one of the actual engineers who designed the trans and he gives tips on modding them.
     
  5. atrainsgt

    atrainsgt Well-Known Member

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    Old thread I know but I'm possibly thinking of swapping out my t-45 for a 4r70w and wondered if you got yours done? The stock 4r70w should handle the power of the 5.4L I want to put to it. Right now I'm trying to figure out what parts I am going to need for the swap. Any info you have would be great. Thanks
     
  6. jfor441

    jfor441 Legend

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    Still have not done my swap yet... http://www.lasotaracing.com/tech.html This is the only link I have found with someone doing a 5speed to auto swap. You will need to get a computer from an auto car as well as the wiring harness for the auto transmission. Other than that it seems to be a fairly straight forward swap.
     
  7. voidfinger

    voidfinger Well-Known Member

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    if you had a basically brand new 5 speed i would do it... just put an 4r70w in with 20k miles on it. and spent a ton of money. :) plus i have a shop if someone would drive lol.
     
  8. atrainsgt

    atrainsgt Well-Known Member

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    It does seem straight forward but something unexpected will come up, always does. I've found some decent prices on 4r70w transmissions so I should be able to swing it. Thanks for that link BTW.
     
  9. atrainsgt

    atrainsgt Well-Known Member

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    What are these auto guys changing to make the auto's shift so high? Shift kit? The reason I'm asking is that I have driven stock auto gt's and they are anything but quick in the stock form. Can you program for high OD off shift points?
     
  10. Mr Jones 4.6

    Mr Jones 4.6 Active Member

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    All you do is get a valvebody or buy a shift kit which modifies the valvebody and that really wakes up these transmissions. After that you can take and with a tuner really fine tune exactly where you want it to shift and how hard. Pretty simple.

    Good Luck with your swap, im hopefully doing the same here on a Cobra hopefully.
     
  11. atrainsgt

    atrainsgt Well-Known Member

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    Thanks, I found a tranny I will probably buy but I have to check on some things, I got a 1998 and they seem to have some weird things that are changed.
     
  12. Steven

    Steven Legend

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    i'll have all my auto swap pieces left over from my 5 speed swap
     
  13. atrainsgt

    atrainsgt Well-Known Member

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    That would be great. Maybe we can work something out.
     
  14. Steven

    Steven Legend

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    if your wantin to get a deal going, then we can. I have most everything i need already, other then a harness/trans mount. i'm in sc, south side
     
  15. 96sohc

    96sohc Active Member

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    Without sounding like an ass, its the exact reverse of doing an auto to 5 speed swap; the only variance being you need a new computer.
     
  16. atrainsgt

    atrainsgt Well-Known Member

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    May sound like a simple swap but I've never had a auto so the I'm not sure would be involved in the reverse. So you have the interior parts as well V? What about the stock computer? Let me know
     
  17. Steven

    Steven Legend

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    i have my computer, which i'll trade you out for yours. since yours is a 98 like mine, we can swap computers. I already have the pedals out, and i have most everything i need already.
     
  18. atrainsgt

    atrainsgt Well-Known Member

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    Awesome, can you take some pics so I can see the condition of the shifter bezel and everything? My car looks like new inside and I'm trying to keep it that way. Your interior is black right?
     
  19. Fets

    Fets Legend

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    Josh I got a nice auto for you to swap in if you wanna trade me for your 5speed :afro:
     
  20. Steven

    Steven Legend

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    yep, and mines is pretty good shape, i already have a shift boot around my auto shifter though. Looks cooler :coolsmiley: