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700r4 to 4l80e

Discussion in 'The Garage' started by dammit32, Jan 10, 2004.

  1. dammit32

    dammit32 1/2 ton status

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    Is it possible to swap these? I hear they are pretty much the same tranny but the 4l80e runs more on electics...


    or am I better off to rebuild my 700r4 or replace it?
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    The 700R4 and the 4L80E are two completely different transmissions. I think you may be confused with the 4L60 or 4L60E which is the later version of the 700R4.
     
  3. dammit32

    dammit32 1/2 ton status

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    can I use a 4l60e as a replacement?
     
  4. HarryH3

    HarryH3 1 ton status Author

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    The 4L60e is an electronically controlled version of the 700R4. It will only function when connected to a control computer. There was also a 4L60 (no "e") for a few years, which is just a 700R4 with a different name. A 4L60 can be swapped in place of a 700R4. But to swap in a 4L60e you'll need to spend a lot of money for the correct controller. I'm not sure if you can even get a standalone computer for a 4L60e. They're available for the larger, sturdier 4L80e, but they cost $750 and up. /forums/images/graemlins/eek.gif
     
  5. thezentree

    thezentree 3/4 ton status

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    dont mean to jack your thread, just a quick question. is a 4l60e to 4L80e swap that hard?
     
  6. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    I'm not too sure about the computer portion but the adapter is different, and the input gear for the T-case is also different, the lengths are different as well. Sounds like too much work and money if you are only wanting a beefier trans and your existing one still works.
     
  7. jwduke

    jwduke 1/2 ton status

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    I think if I wanted the strength of a 4L80e, i'd go with one of those "Raptor" 700R4's, you would have the strength, at a "cheaper" price. /forums/images/graemlins/cool.gif
     
  8. HarryH3

    HarryH3 1 ton status Author

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    [ QUOTE ]
    I think if I wanted the strength of a 4L80e, i'd go with one of those "Raptor" 700R4's, you would have the strength, at a "cheaper" price.

    [/ QUOTE ]
    Sorry, it's still not even close. I've talked with the folks at Bowtie Overdrives and they do NOT recommend even their most beefed up 700R4 for use in big, heavy trucks with lots of power on tap. /forums/images/graemlins/eek.gif They work great in Camaros and such, but for heavy rigs they said go with a 4L80e. It's built from the ground up to handle a LOT more abuse. /forums/images/graemlins/thumb.gif

    (BTW, after some of the horror stories I've heard about customer service (or the lack thereof) from the Raptor folks, I wouldn't buy so much as a keychain from 'em.) /forums/images/graemlins/shocked.gif
     
  9. btolenti

    btolenti 1/2 ton status

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    I've heard good things about the bowtie overdrives stuff. And how much horsepower are we talking about Dammit32???
     
  10. Confedneck

    Confedneck 3/4 ton status

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    4l80s have MASSIVE power capabilites over a 700r4.. it could be worth the effort and money spent to make a 4L80e work in place of a 700, especially if the parts could be mass produced..
     
  11. SF87K5

    SF87K5 1/2 ton status

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    HP is not the problem in are trucks it the torque.
     
  12. jwduke

    jwduke 1/2 ton status

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    I have to agree with that statement!

    I have seen diagrams & pictures of internal parts of the 4L80E & the TH700R4, and their is a HUGE difference in parts. And as far as we know a "raptor" may be "advertised hype". Who knows?

    I do know GM had so many problems the had to re name the TH700R4, but not the 4L80E.
     
  13. Hardcore

    Hardcore 1/2 ton status

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    So what would it take to do this swap? (700R4 to 4L80E) The controller for the tranny, and what else. Will it bolt up to a SBC? Anyone done it?
     
  14. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Control box, correct T-case adapter, correct crossmember, correct 32 spline input shaft for T-case, shorter rear driveshaft and longer front driveshaft. I am sure I am missing something and someone will chime in and let you know.
     
  15. Hardcore

    Hardcore 1/2 ton status

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    WOW sounds like a PITA, maybe a Bowtie Overdrive built 700R4 is a better option. /forums/images/graemlins/thinking.gif
     

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